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导数相关知识总结

导数相关知识总结

作者: Super小牛 | 来源:发表于2021-05-06 10:33 被阅读0次

    基本初等函数的导数

    {(C)}'=0
    {(x^{n})}'=nx^{n-1}
    {(a^{x})}'=a^{x}\ln(a)
    {(e^{x})}'=e^{x}
    {(\log(a^{x}))}'=\frac{1}{x\ln(a)}
    {(\ln(x))}'=\frac{1}{x}
    {(\sin(x))}'=\cos(x)
    {(\cos(x))}'=-\sin(x)
    {(\tan(x))}'=\sec^{2}(x)
    {(\cot(x))}'=-\csc^{2}(x)
    {(\sec(x))}'=\sec(x)\tan(x)
    {(\csc(x))}'=-\csc(x)\cot(x)
    {(\arcsin(x))}'=\frac{1}{ \sqrt{1-x^{2}}}
    {(\arccos(x))}'=-\frac{1}{ \sqrt{1-x^{2}}}
    {(\arctan(x))}'=\frac{1}{1+x^{2}}
    {(\arccot(x))}'=- \frac{1}{1+x^{2}}

    复合函数求导(一层一层的剥)

    \Big({f\big(g(x)\big)}\Big)' = f'\big(g(x)\big)*g'(x)
    \bigg(f\Big(g\big(h(x)\big)\Big)\bigg)'=f'\Big(g\big(h(x)\big)\Big)*g'\big(h(x)\big)*h'(x)

    导数的四则运算

    u=u(x) 和v=v(x)都可导,则

    (u\pm v)' = u'\pm v'
    (Cu)'=Cu' (C是常数)
    (uv)' = u'v+uv'
    (\frac{u}{v})' =\frac{u'v+uv'}{v^{2}}

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