求函数导数 y=(x^2)/2+2/(x^2)

问题描述:

求函数导数 y=(x^2)/2+2/(x^2)

答:
y=x^2/2+2/(x^2)
=(1/2)*x^2+2*x^(-2)
y'(x)=(1/2)*2x+2*(-2)*x^(-3)
=x-4/x^3
所以:导数y'(x)=x-4/(x^3)