微积分

常用的导数

$$(C)’=0$$

$$(x^{\mu})’=\mu x^{\mu - 1}$$

$$(\sin x)’=\cos x$$

$$(\cos x)’=-\sin x$$

$$(\tan x)’=\sec ^2 x$$

$$(a^x)’=a^x \ln a$$

$$(e^x)’=e^x$$

$$(\log_a x)’=\frac{1}{x ln a}$$

$$(\ln x)’=\frac{1}{x}$$

链式法则

若$h(a)=f[g(x)]$

则$h’(a)=f’[g(x)]g’(x)$

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