根号下x的导怎么算
问题描述：
根号下x的导怎么算
答
(根号x)'= (x^(1/2))'
=1/2* x^(1/2-1)
=1/2*x^(-1/2)
=1/(2根号x)
答
y=x^(1/2)
y'=1/2*x^(1/2-1)
=1/2*x^(-1/2)
=1/(2*根号x)