Tìm một nguyên hàm của hàm số \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqaqpepeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOzamaabm % aabaGaamiEaaGaayjkaiaawMcaaiabg2da9iaadwgadaahaaWcbeqa % aiaaiodacaWG4bGaey4kaSIaaGymaaaaaaa!3E84! f\left( x \right) = {e^{3x + 1}}\)
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Lời giải:
Báo saiSử dụng công thức đọa hàm số mũ , ta có \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqaqpepeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaa8qaaeaaca % WGMbWaaeWaaeaacaWG4baacaGLOaGaayzkaaGaaeizaiaadIhaaSqa % beqaniabgUIiYdGccqGH9aqpdaWdbaqaaiaadwgadaahaaWcbeqaai % aaiodacaWG4bGaey4kaSIaaGymaaaakiaabsgacaWG4bGaeyypa0da % leqabeqdcqGHRiI8aOWaaSaaaeaacaWGLbWaaWbaaSqabeaacaaIZa % GaamiEaiabgUcaRiaaigdaaaaakeaacaaIZaaaaiabgUcaRiaadoea % aaa!4E55! \int {f\left( x \right){\rm{d}}x} = \int {{e^{3x + 1}}{\rm{d}}x = } \frac{{{e^{3x + 1}}}}{3} + C\)