y=arctan(x+1/x-1)导数
问题描述:
y=arctan(x+1/x-1)导数
答
y=arctanx+1\x-1 y'=1/[1+(x+1\x-1)^2]*(x+1\x-1)' =1/[1+(x+1\x-1)^2]*(-2)/(x-1)^2 =-1/(1+x^2)
y=arctan(x+1/x-1)导数
y=arctanx+1\x-1 y'=1/[1+(x+1\x-1)^2]*(x+1\x-1)' =1/[1+(x+1\x-1)^2]*(-2)/(x-1)^2 =-1/(1+x^2)