derivative f(x)=3t^4-7t^3+2

解答

导数

f (x) = 3 t^{4} - 7 t^{3} + 2

\frac{d t}{d x} = 0

求解步骤

f (x) = 3 t^{4} - 7 t^{3} + 2

将

t

视为

t (x)

对两侧微分:

0 = 12 t^{3} \frac{d t}{d x} - 21 t^{2} \frac{d t}{d x}

整理

\frac{d t}{d x} : \frac{d t}{d x} = 0

\frac{d t}{d x} = 0

x \to 1 lim (sin (3 p i x))

d er i v a t i v e e^{- 20 x}

\frac{d}{d x} (ln (\frac{3 x}{x ^{2} + 4}))

\frac{d}{d x} (cosh^{2} (x))

\frac{d y}{d x} = 8 x^{3} e^{- 2 y}, y (1) = 0