4)- العمليات على النهايات

  خاصية

   إذا كانت ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  و ( v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG2bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BE@  متتاليتين متقاربتين و λ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiabeU7aSjabgI Giolabl2riHcaa@3AAE@  فإن:  

Ø     المتتالية ( u n + v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaOGaey4kaSIaamODamaaBaaaleaa caWGUbaabeaaaOGaayjkaiaawMcaaaaa@3CC3@  متقاربة  و  lim n+ ( u n + v n )= lim n+ ( u n )+ lim n+ ( v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaacaWG1bWaaSbaaSqaaiaad6gaaeqaaOGaey4kaS IaamODamaaBaaaleaacaWGUbaabeaaaOGaayjkaiaawMcaaiabg2da 9maaxababaGaciiBaiaacMgacaGGTbaaleaacaWGUbGaeyOKH4Qaey 4kaSIaeyOhIukabeaakmaabmaabaGaamyDamaaBaaaleaacaWGUbaa beaaaOGaayjkaiaawMcaaiabgUcaRmaaxababaGaciiBaiaacMgaca GGTbaaleaacaWGUbGaeyOKH4Qaey4kaSIaeyOhIukabeaakmaabmaa baGaamODamaaBaaaleaacaWGUbaabeaaaOGaayjkaiaawMcaaaaa@5ED6@

Ø     المتتالية ( u n v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaOGaamODamaaBaaaleaacaWGUbaa beaaaOGaayjkaiaawMcaaaaa@3BE1@  متقاربة  و  lim n+ ( u n v n )= lim n+ ( u n ) lim n+ ( v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaacaWG1bWaaSbaaSqaaiaad6gaaeqaaOGaamODam aaBaaaleaacaWGUbaabeaaaOGaayjkaiaawMcaaiabg2da9maaxaba baGaciiBaiaacMgacaGGTbaaleaacaWGUbGaeyOKH4Qaey4kaSIaey OhIukabeaakmaabmaabaGaamyDamaaBaaaleaacaWGUbaabeaaaOGa ayjkaiaawMcaamaaxababaGaciiBaiaacMgacaGGTbaaleaacaWGUb GaeyOKH4Qaey4kaSIaeyOhIukabeaakmaabmaabaGaamODamaaBaaa leaacaWGUbaabeaaaOGaayjkaiaawMcaaaaa@5D12@ .

Ø     المتتالية ( λ u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaacq aH7oaBcaWG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaa aa@3B71@  متقاربة  و  lim n+ ( λ u n )=λ lim n+ ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaacqaH7oaBcaWG1bWaaSbaaSqaaiaad6gaaeqaaa GccaGLOaGaayzkaaGaeyypa0Jaeq4UdW2aaCbeaeaaciGGSbGaaiyA aiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisPaeqaaOWaae WaaeaacaWG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaa aa@5263@ .

Ø     المتتالية ( u n v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaada WcaaqaaiaadwhadaWgaaWcbaGaamOBaaqabaaakeaacaWG2bWaaSba aSqaaiaad6gaaeqaaaaaaOGaayjkaiaawMcaaaaa@3BF1@  متقاربة  و  lim n+ ( u n v n )= lim n+ ( u n ) lim n+ ( v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaadaWcaaqaaiaadwhadaWgaaWcbaGaamOBaaqaba aakeaacaWG2bWaaSbaaSqaaiaad6gaaeqaaaaaaOGaayjkaiaawMca aiabg2da9maalaaabaWaaCbeaeaaciGGSbGaaiyAaiaac2gaaSqaai aad6gacqGHsgIRcqGHRaWkcqGHEisPaeqaaOWaaeWaaeaacaWG1bWa aSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaabaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaacaWG2bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOa Gaayzkaaaaaaaa@5D32@  مع lim n+ ( v n )0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaacaWG2bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOa GaayzkaaGaeyiyIKRaaGimaaaa@4485@

  5)- توسيع العمليات على نهاية متتالية

     لتكن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  و ( v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG2bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BE@  متتاليتين عدديتين و l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaaaa@3702@  و l' MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiaacE caaaa@37AD@   أعدادا حقيقية.

    أ)- الجمع

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaaaa@3702@

l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaaaa@3702@

l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaaaa@3702@

lim x+ u n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaaaaa@407A@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

l' MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiaacE caaaa@37AD@

lim x+ v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamODamaaBaaaleaacaWGUbaabeaaaaa@407B@

F.I

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

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    ب- الضرب

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0

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F.I

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lim x+ ( u n v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaacaWG1bWaaSbaaSqaaiaad6gaaeqaaOGaamODam aaBaaaleaacaWGUbaabeaaaOGaayjkaiaawMcaaaaa@4431@

   ج- المقلوب

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0 + MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaaGimamaaCa aaleqabaGaey4kaScaaaaa@37DA@

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lim x+ v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamODamaaBaaaleaacaWGUbaabeaaaaa@407B@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

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0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaaGimamaaCa aaleqabaGaeyOeI0caaaaa@37E5@

0 + MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaaGimamaaCa aaleqabaGaey4kaScaaaaa@37DA@

 

1 l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaSaaaeaaca aIXaaabaGaamiBaaaaaaa@37CD@

lim x+ 1 v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaSaaaeaacaaIXaaabaGaamODamaaBaaaleaacaWGUbaabe aaaaaaaa@4146@

 د- الخارج

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0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaaGimamaaCa aaleqabaGaeyOeI0caaaaa@37E5@

0 + MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaaGimamaaCa aaleqabaGaey4kaScaaaaa@37DA@

0 + MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaaGimamaaCa aaleqabaGaey4kaScaaaaa@37DA@

l<0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiabgY da8iaaicdaaaa@38C0@

l>0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiabg6 da+iaaicdaaaa@38C4@

l<0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiabgY da8iaaicdaaaa@38C0@

l>0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiabg6 da+iaaicdaaaa@38C4@

± MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyySaeRaey OhIukaaa@3970@

l'0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiaacE cacqGHGjsUcaaIWaaaaa@3A2E@

lim + v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaqcfa4aaCbeaK qaGfaajug4aiGacYgacaGGPbGaaiyBaaqcbawaaKqzGdGaey4kaSIa eyOhIukajeaybeaajug4aiaadAhajuaGdaWgaaqcbawaaKqzGdGaam OBaaqcbawabaaaaa@45D7@

F.I

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyOeI0Iaey OhIukaaa@386F@

+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaey4kaSIaey OhIukaaa@3864@

0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaaGimaaaa@36CB@

l l' MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaSaaaeaaca WGSbaabaGaamiBaiaacEcaaaaaaa@38AE@

lim + u n v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaqcfa4aaCbeaK aaGfaajug4aiGacYgacaGGPbGaaiyBaaqcbawaaKqzGdGaey4kaSIa eyOhIukajeaybeaajuaGdaWcaaqcaawaaKqzGdGaamyDaKqbaoaaBa aajeaybaqcLboacaWGUbaajeaybeaaaKaaGfaajug4aiaadAhajuaG daWgaaqcbawaaKqzGdGaamOBaaqcbawabaaaaaaa@4D52@

   مثال   

   لتكن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  المتتالية العددية المعرفة بما يلي: n, u n = n 2n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLkaacYcacaWG1bWaaSbaaSqaaiaad6gaaeqa aOGaeyypa0ZaaOaaaeaacaWGUbaaleqaaOGaeyOeI0IaaGOmaiaad6 gaaaa@4251@ .

    لندرس تقارب المتتالية ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@ :

لدينا : n, u n = n ( 12 n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLkaacYcacaWG1bWaaSbaaSqaaiaad6gaaeqa aOGaeyypa0ZaaOaaaeaacaWGUbaaleqaaOWaaeWaaeaacaaIXaGaey OeI0IaaGOmamaakaaabaGaamOBaaWcbeaaaOGaayjkaiaawMcaaaaa @44BA@  ، و بما أن lim x+ n =+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaOaaaeaacaWGUbaaleqaaOGaeyypa0Jaey4kaSIaeyOhIu kaaa@42D2@  فإن lim x+ u n = MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9iabgkHiTi abg6HiLcaa@43E8@  

      إذن المتتالية ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  متباعدة.

   تمرين

   لتكن ( u n ) n2 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaWaaSbaaSqa aiaad6gacqGHLjYScaaIYaaabeaaaaa@3D5D@  المتتالية العددية المعرفة بما يلي: u 2 =1 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamyDamaaBa aaleaacaaIYaaabeaakiabg2da9iaaigdaaaa@39BE@  و n { 1 }, u n+1 =( 1+ 2 n1 ) u n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLoaaCaaaleqabaGaey4fIOcaaOGaeyOeI0Ya aiWaaeaacaaIXaaacaGL7bGaayzFaaGaaiilaiaadwhadaWgaaWcba GaamOBaiabgUcaRiaaigdaaeqaaOGaeyypa0ZaaeWaaeaacaaIXaGa ey4kaSYaaSaaaeaacaaIYaaabaGaamOBaiabgkHiTiaaigdaaaaaca GLOaGaayzkaaGaamyDamaaBaaaleaacaWGUbaabeaaaaa@4DDF@ .

1)    MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaacbmqcLbCaqa aaaaaaaaWdbiaa=nbiaaa@3806@  بين بالترجع أن: n { 1 }, u n = n( n1 ) 2 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLoaaCaaaleqabaGaey4fIOcaaOGaeyOeI0Ya aiWaaeaacaaIXaaacaGL7bGaayzFaaGaaiilaiaadwhadaWgaaWcba GaamOBaaqabaGccqGH9aqpdaWcaaqaaiaad6gadaqadaqaaiaad6ga cqGHsislcaaIXaaacaGLOaGaayzkaaaabaGaaGOmaaaaaaa@497F@ .

2)    MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaacbmqcLbCaqa aaaaaaaaWdbiaa=nbiaaa@3806@  استنتج  أن المتتالية ( u n ) n2 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaWaaSbaaSqa aiaad6gacqGHLjYScaaIYaaabeaaaaa@3D5D@  متباعدة .

 6)- النهايات و الترتيب

  خاصية

    لتكن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  و ( v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG2bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BE@  متتاليتين عدديتين متقاربتين بحيث: lim n+ u n =l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9iaadYgaaa a@4271@  و lim n+ v n =l' MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamODamaaBaaaleaacaWGUbaabeaakiabg2da9iaadYgaca GGNaaaaa@431D@

Ø     إذا كان u n >0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamyDamaaBa aaleaacaWGUbaabeaakiabg6da+iaaicdaaaa@39F6@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@  حيث ( n 0 ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WGUbWaaSbaaSqaaiaaicdaaeqaaOGaeyicI4SaeSyfHukacaGLOaGa ayzkaaaaaa@3C6D@  فإن l0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiabgw MiZkaaicdaaaa@3982@ .

Ø     إذا كان u n >a MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamyDamaaBa aaleaacaWGUbaabeaakiabg6da+iaadggaaaa@3A22@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@  حيث ( n 0 ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WGUbWaaSbaaSqaaiaaicdaaeqaaOGaeyicI4SaeSyfHukacaGLOaGa ayzkaaaaaa@3C6D@  فإن la MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiabgw MiZkaadggaaaa@39AE@ .

Ø     إذا كان u n > v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamyDamaaBa aaleaacaWGUbaabeaakiabg6da+iaadAhadaWgaaWcbaGaamOBaaqa baaaaa@3B56@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@  حيث ( n 0 ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WGUbWaaSbaaSqaaiaaicdaaeqaaOGaeyicI4SaeSyfHukacaGLOaGa ayzkaaaaaa@3C6D@  فإن ll' MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamiBaiabgw MiZkaadYgacaGGNaaaaa@3A64@ .

  برهان

·        نفترض أن u n >0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamyDamaaBa aaleaacaWGUbaabeaakiabg6da+iaaicdaaaa@39F6@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@  و lim n+ u n =l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9iaadYgaaa a@4271@  بحيث l<0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiaadYgacqGH8a apcaaIWaaaaa@38B5@

لدينا lim n+ u n =l MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9iaadYgaaa a@4271@  إذن من أجل ε= l 2 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiabew7aLjabg2 da9iabgkHiTmaalaaabaGaamiBaaqaaiaaikdaaaaaaa@3B5D@  نحصل على N 1 /n N 1 , u n ] lε,l+ε [=] 3l 2 , l 2 [ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqabeWadmqadqWaaOqaaiabgoGiKiaad6 eadaWgaaWcbaGaaGymaaqabaGccqGHiiIZcqWIvesPcaGGVaGaeyia IiIaamOBaiabgwMiZkaad6eadaWgaaWcbaGaaGymaaqabaGccaGGSa GaamyDamaaBaaaleaacaWGUbaabeaakiabgIGiopaajmcabaGaamiB aiabgkHiTiabew7aLjaacYcacaWGSbGaey4kaSIaeqyTdugacaGLDb Gaay5waaGaeyypa0ZaaKWiaeaadaWcaaqaaiaaiodacaWGSbaabaGa aGOmaaaacaGGSaWaaSaaaeaacaWGSbaabaGaaGOmaaaaaiaaw2faca GLBbaaaaa@57B0@

نضع N=sup( n 0 , N 1 ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiaad6eacqGH9a qpciGGZbGaaiyDaiaacchadaqadaqaaiaad6gadaWgaaWcbaGaaGim aaqabaGccaGGSaGaamOtamaaBaaaleaacaaIXaaabeaaaOGaayjkai aawMcaaaaa@40A5@  إذن nN, u n < l 2 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqabeWadmqadqWaaOqaaiabgcGiIiaad6 gacqGHLjYScaWGobGaaiilaiaadwhadaWgaaWcbaGaamOBaaqabaGc cqGH8aapdaWcaaqaaiaadYgaaeaacaaIYaaaaaaa@3FF4@  و u n >0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamyDamaaBa aaleaacaWGUbaabeaakiabg6da+iaaicdaaaa@39F6@  و هذا تناقض.

·        نضع v n = u n a MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiaadAhadaWgaa WcbaGaamOBaaqabaGccqGH9aqpcaWG1bWaaSbaaSqaaiaad6gaaeqa aOGaeyOeI0Iaamyyaaaa@3D26@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@  و نحصل على v n >0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamODamaaBa aaleaacaWGUbaabeaakiabg6da+iaaicdaaaa@39F7@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@

·        نضع w n = u n v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiaadEhadaWgaa WcbaGaamOBaaqabaGccqGH9aqpcaWG1bWaaSbaaSqaaiaad6gaaeqa aOGaeyOeI0IaamODamaaBaaaleaacaWGUbaabeaaaaa@3E5B@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@  و نحصل على w n >0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaam4DamaaBa aaleaacaWGUbaabeaakiabg6da+iaaicdaaaa@39F8@  لكل n n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamOBaiabgw MiZkaad6gadaWgaaWcbaGaaGimaaqabaaaaa@3AA3@

 

   مثال

          لتكن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  و ( v n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG2bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BE@  المتتاليتين العدديتين المعرفتين بما يلي:

         n , u n = 1 3 1 n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLoaaCaaaleqabaGaey4fIOcaaOGaaiilaiaa dwhadaWgaaWcbaGaamOBaaqabaGccqGH9aqpdaWcaaqaaiaaigdaae aacaaIZaaaaiabgkHiTmaalaaabaGaaGymaaqaaiaad6gaaaaaaa@43F6@        و       n , v n = 1 3 + 1 n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLoaaCaaaleqabaGaey4fIOcaaOGaaiilaiaa dAhadaWgaaWcbaGaamOBaaqabaGccqGH9aqpdaWcaaqaaiaaigdaae aacaaIZaaaaiabgUcaRmaalaaabaGaaGymaaqaaiaad6gaaaaaaa@43EC@ .

1)    MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaacbmqcLbCaqa aaaaaaaaWdbiaa=nbiaaa@3806@  أ- تحقق من أن n>3, u n >0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabg6da+iaaiodacaGGSaGaamyDamaaBaaaleaacaWGUbaabeaa kiabg6da+iaaicdaaaa@3E2E@ .

       ب- أحسب lim x+ u n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaaaaa@407A@  و تحقق من أن lim x+ u n 0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabgwMiZkaaicdaaa a@4304@

2)    MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaacbmqcLbCaqa aaaaaaaaWdbiaa=nbiaaa@3806@  أ- بين أن n , u n < v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLoaaCaaaleqabaGaey4fIOcaaOGaaiilaiaa dwhadaWgaaWcbaGaamOBaaqabaGccqGH8aapcaWG2bWaaSbaaSqaai aad6gaaeqaaaaa@41DB@ .

       ب- أحسب lim x+ u n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaaaaa@407A@  و lim x+ v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamODamaaBaaaleaacaWGUbaabeaaaaa@407B@  و تحقق من أن lim x+ u n = lim x+ v n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaadIhacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9maaxababa GaciiBaiaacMgacaGGTbaaleaacaWG4bGaeyOKH4Qaey4kaSIaeyOh IukabeaakiaadAhadaWgaaWcbaGaamOBaaqabaaaaa@4BF4@ .

    خاصية(مقبولة)

Ø     كل متتالية تزايدية و مكبورة هي متقاربة.

Ø     كل متتالية تناقصية و مصغورة هي متقاربة.

   ملاحظة

Ø     كل متتالية تزايدية و سالبة هي متتالية متقاربة.

Ø     كل متتالية تناقصية و موجبة هي متتالية متقاربة.

  مثال

     لتكن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BC@  المتتالية العددية المعرفة بما يلي: n, u n = k=0 k=n 1 n! MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLkaacYcacaWG1bWaaSbaaSqaaiaad6gaaeqa aOGaeyypa0ZaaabCaeaadaWcaaqaaiaaigdaaeaacaWGUbGaaiyiaa aaaSqaaiaadUgacqGH9aqpcaaIWaaabaGaam4Aaiabg2da9iaad6ga a0GaeyyeIuoaaaa@48DB@ .

1)    - بين أن : k{ 0,1 },k! 2 k1 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqr1ngB PrgifHhDYfgasaacH8YjY=vipgYlh9vqqj=hEeeu0xXdbba9frFj0= OqFfea0dXdd9vqai=hGuQ8kuc9pgc9q8qqaq=dir=f0=yqaiVgFr0x fr=xfr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIi Iaam4AaiabgIGiolablwriLoaacmaabaGaaGimaiaacYcacaaIXaaa caGL7bGaayzFaaGaaiilaiaadUgacaGGHaGaeyyzImRaaGOmamaaCa aaleqabaGaam4AaiabgkHiTiaaigdaaaaaaa@484D@  و استنتج أنها مكبورة

2)    MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaacbmqcLbCaqa aaaaaaaaWdbiaa=nbiaaa@3806@  أدرس رتابة المتتالية ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BC@  ،واستنتج أنها متقاربة

  ملاحظة

              الخاصية السابقة تبين فقط أن المتتالية متقاربة و لا تمكن من تحديد نهايتها .

   خاصية

        لتكن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  متتالية عددية.

v    إذا كانت ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  تزايدية و غير مكبورة فإنها متباعدة و تؤول إلى + MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiabgUcaRiabg6 HiLcaa@3859@

v    إذا كانت ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  تناقصية و غير مصغورة فإنها متباعدة و تؤول إلى MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqadeWadmqadqWaaOqaaiabgkHiTiabg6 HiLcaa@3864@

  برهان

·        نفترض أن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  تزايدية و غير مكبورة

إذن A>0,N/ u N >A MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqabeWadmqadqWaaOqaaiabgcGiIiaadg eacqGH+aGpcaaIWaGaaiilaiabgoGiKiaad6eacqGHiiIZcqWIvesP caGGVaGaamyDamaaBaaaleaacaWGobaabeaakiabg6da+iaadgeaaa a@4328@  ،

و بما أن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  تزايدية فإن A>0,N/nN, u n >A MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY=Hhbbf9v8qqaqFr0xc9pk0xbb a9q8WqFfeaY=biLkVcLq=JHqpepeea0=as0Fb9pgeaYRXxe9vr0=vr 0=vqpWqadeWabmGadiWaceqabeWadmqadqWaaOqaaiabgcGiIiaadg eacqGH+aGpcaaIWaGaaiilaiabgoGiKiaad6eacqGHiiIZcqWIvesP caGGVaGaeyiaIiIaamOBaiabgwMiZkaad6eacaGGSaGaamyDamaaBa aaleaacaWGUbaabeaakiabg6da+iaadgeaaaa@4854@  و منه lim n+ u n =+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9iabgUcaRi abg6HiLcaa@43D3@

·        نفترض أن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BD@  تناقصية و غير مصغورة.

إذن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaacq GHsislcaWG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaa aa@3AAA@  تزايدية و غير مكبورة و منه lim n+ u n =+ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaeyOeI0IaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9i abgUcaRiabg6HiLcaa@44C0@  أي lim n+ u n = MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOGaamyDamaaBaaaleaacaWGUbaabeaakiabg2da9iabgkHiTi abg6HiLcaa@43DE@

   تمرين

     لتكن ( u n ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaeWaaeaaca WG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOaGaayzkaaaaaa@39BC@  المتتالية العددية المعرفة بما يلي: n, u n+1 = u n + 1 u n MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaeyiaIiIaam OBaiabgIGiolablwriLkaacYcacaWG1bWaaSbaaSqaaiaad6gacqGH RaWkcaaIXaaabeaakiabg2da9iaadwhadaWgaaWcbaGaamOBaaqaba GccqGHRaWkdaWcaaqaaiaaigdaaeaacaWG1bWaaSbaaSqaaiaad6ga aeqaaaaaaaa@4623@  و u 0 >0 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaGaamyDamaaBa aaleaacaaIWaaabeaakiabg6da+iaaicdaaaa@39BD@ .

·        بين أن lim n+ ( u n )=+ MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbmqadeWacmGadiqabmqadmWabmabdaGcbaWaaCbeaeaaci GGSbGaaiyAaiaac2gaaSqaaiaad6gacqGHsgIRcqGHRaWkcqGHEisP aeqaaOWaaeWaaeaacaWG1bWaaSbaaSqaaiaad6gaaeqaaaGccaGLOa GaayzkaaGaeyypa0Jaey4kaSIaeyOhIukaaa@455B@