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考研数学常用求导公式汇总

时间:2026-10-04 04:54 来源:网络整理 转载:c121.com

考研数学中,掌握常用的求导公式对于解题至关重要。******列举了一些基础且常用的求导公式,帮******生在复习过程中更好地理解和记忆。

1. **基本函数的导数**:

- \( \frac{d}{dx}(c) = 0 \)(常数的导数为0)

- \( \frac{d}{dx}(x^n) = nx^{n-1} \)(幂函数的导数)

- \( \frac{d}{dx}(\sin x) = \cos x \)

- \( \frac{d}{dx}(\cos x) = -\sin x \)

- \( \frac{d}{dx}(\tan x) = \sec^2 x \)

- \( \frac{d}{dx}(\cot x) = -\csc^2 x \)

- \( \frac{d}{dx}(\sec x) = \sec x\tan x \)

- \( \frac{d}{dx}(\csc x) = -\csc x\cot x \)

2. **复合函数的求导法则**:

- 若\( y = f(g(x)) \),则\( y' = f'(g(x))g'(x) \)

3. **乘积法则**:

- 若\( y = uv \),则\( y' = u'v + uv' \)

4. **商法则**:

- 若\( y = \frac{u}{v} \),则\( y' = \frac{u'v - uv'}{v^2} \)

5. **链式法则**:

- 若\( y = f(g(x))\),则\( y' = f'(g(x))g'(x) \)

6. **对数函数的导数**:

- \( (\ln u)' = u'/u, u > 0\)(对数函数的导数)

7. **指数函数的导数**:

- \( (a^u)' = a^u\ln a * u', a > 0, a ≠ 1\)(指数函数的导数)

8. **反三角函数的导数**:

- \( (\arcsin u)' = u'/\sqrt{1-u^2}, |u| < 1\)

- \( (\arccos u)' =