如何求导

更新时间: 2021-06-20 14:15:51     

1、求函数y=f(x)在x0处导数的步骤:求函数的增量Δy=f(x0+Δx)-f(x0);求平均变化率;取极限,得导数。

2、常见的求导公式有: C'=0(C为常数); (x^n)'=nx^(n-1) (n∈Q); (sinx)'=cosx; (cosx)'=-sinx;(e^x)'=e^x;(a^x)'=a^xIna (ln为自然对数;loga(x)'=(1/x)loga(e)

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