求以下函数的导数.
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求以下函数的导数.
![](http://img.wesiedu.com/upload/d/9a/d9a0ea6e24f7fa97e229e59ec74c7ff6.jpg)
![](http://img.wesiedu.com/upload/d/9a/d9a0ea6e24f7fa97e229e59ec74c7ff6.jpg)
![求以下函数的导数.](/uploads/image/z/19795727-47-7.jpg?t=%E6%B1%82%E4%BB%A5%E4%B8%8B%E5%87%BD%E6%95%B0%E7%9A%84%E5%AF%BC%E6%95%B0.)
/>y'=nsin^(n-1)x cosnx-nsin^n x sin nx=nsin^(n-1)x (cos nx - sinx sin nx)
y'=2xcos√(1+x^2) / √(1+x^2)-cos[arccot √x]/x√x
y'=sec^2(a^x) a^x lna +ax^(a-1)sec^2x^a / sec^2(arctanx^a)
tany=(x+1)/(x-1) y'sec^2 y=-2/(x-1)^2 y'=-2/{(x-1)^2 sec^2 [arctan(x+1)/(x-1)]}
y'=-sin[arctane^(-x)] [arctane^(-x)]'=sin[arctane^(-x)] e^(-x)/sec^2arctane^(-x)]
y'=2xcos√(1+x^2) / √(1+x^2)-cos[arccot √x]/x√x
y'=sec^2(a^x) a^x lna +ax^(a-1)sec^2x^a / sec^2(arctanx^a)
tany=(x+1)/(x-1) y'sec^2 y=-2/(x-1)^2 y'=-2/{(x-1)^2 sec^2 [arctan(x+1)/(x-1)]}
y'=-sin[arctane^(-x)] [arctane^(-x)]'=sin[arctane^(-x)] e^(-x)/sec^2arctane^(-x)]