https://icci.ink/categories/%E5%BE%AE%E7%A7%AF%E5%88%86/Recent content in 微积分 on ICCIHugozh-cnWed, 19 Mar 2025 00:00:00 +0000https://icci.ink/study/theory/math-%E5%AF%BC%E6%95%B0%E5%85%AC%E5%BC%8F%E9%80%9F%E6%9F%A5%E8%A1%A8/Wed, 19 Mar 2025 00:00:00 +0000https://icci.ink/study/theory/math-%E5%AF%BC%E6%95%B0%E5%85%AC%E5%BC%8F%E9%80%9F%E6%9F%A5%E8%A1%A8/<p>常见函数导数速查表</p> <h2 id="基本函数导数表">基本函数导数表<a class="anchor" href="#%e5%9f%ba%e6%9c%ac%e5%87%bd%e6%95%b0%e5%af%bc%e6%95%b0%e8%a1%a8">#</a></h2> $$ \begin{align} (1) & \quad (C)' = 0, \\ (2) & \quad (x^\mu)' = \mu x^{\mu-1}, \\ (3) & \quad (\sin x)' = \cos x, \\ (4) & \quad (\cos x)' = -\sin x, \\ (5) & \quad (\tan x)' = \sec^2 x, \\ (6) & \quad (\cot x)' = -\csc^2 x, \\ (7) & \quad (\sec x)' = \sec x \tan x, \\ (8) & \quad (\csc x)' = -\csc x \cot x, \\ (9) & \quad (a^x)' = a^x \ln a \quad (a > 0, a \neq 1), \\ (10) & \quad (e^x)' = e^x, \\ (11) & \quad (\log_a x)' = \frac{1}{x \ln a} \quad (a > 0, a \neq 1), \\ (12) & \quad (\ln x)' = \frac{1}{x}, \\ (13) & \quad (\arcsin x)' = \frac{1}{\sqrt{1 - x^2}}, \\ (14) & \quad (\arccos x)' = -\frac{1}{\sqrt{1 - x^2}}, \\ (15) & \quad (\arctan x)' = \frac{1}{1 + x^2}, \\ (16) & \quad (\operatorname{arccot} x)' = -\frac{1}{1 + x^2}. \end{align} $$<h2 id="函数导数定义">函数导数定义<a class="anchor" href="#%e5%87%bd%e6%95%b0%e5%af%bc%e6%95%b0%e5%ae%9a%e4%b9%89">#</a></h2> <p>设函数f(x)在点x的某个邻域内有定义，如果函数f(x)在点x处的变化量与自变量x的变化量之比当x的变化量趋近于0时的极限存在，那么这个极限就称为函数f(x)在点x处的导数，记作f&rsquo;(x)或df/dx。</p>