Đạo hàm của hàm số \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOzamaabm % aabaGaamiEaaGaayjkaiaawMcaaiabg2da9maabmaabaGaamiEamaa % Caaaleqabaaeaaaaaaaaa8qacaaIYaaaaOGaey4kaSIaaGymaaWdai % aawIcacaGLPaaadaahaaWcbeqaa8qacaaI0aaaaaaa!40AB! f\left( x \right) = {\left( {{x^2} + 1} \right)^4}\) tại điểm x = -1 là:
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Lời giải:
Báo sai\(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGabmyEayaafa % Gaeyypa0JaaGinamaabmaabaGaamiEamaaCaaaleqabaaeaaaaaaaa % a8qacaaIYaaaaOGaey4kaSIaaGymaaWdaiaawIcacaGLPaaadaahaa % Wcbeqaa8qacaaIZaaaaOWdamaabmaabaGaamiEamaaCaaaleqabaWd % biaaikdaaaGccqGHRaWkcaaIXaaapaGaayjkaiaawMcaamaaCaaale % qabaGccWaGGBOmGikaaiabg2da9iaaiIdacaWG4bWaaeWaaeaacaWG % 4bWaaWbaaSqabeaapeGaaGOmaaaakiabgUcaRiaaigdaa8aacaGLOa % GaayzkaaWaaWbaaSqabeaapeGaaG4maaaaaaa!5062! y' = 4{\left( {{x^2} + 1} \right)^3}{\left( {{x^2} + 1} \right)^\prime } = 8x{\left( {{x^2} + 1} \right)^3}\) \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaccaGae8N0H4 % TabmyEayaafaWaaeWaaeaacqGHsislcaaIXaaacaGLOaGaayzkaaGa % eyypa0JaeyOeI0IaaGOnaiaaisdaaaa!4000! \Rightarrow y'\left( { - 1} \right) = - 64\)