y=(x+1)^0.5-(x-1)^0.5 怎么求导

问题描述:

y=(x+1)^0.5-(x-1)^0.5 怎么求导

y'=1/[2(x+1)^0.5]-1/[2(x-1)^0.5]

y'=1/2*(x+1)^(-1/2)-1/2*(x-1)^(-1/2)