# Having some trouble differentiating

by TSN79
Tags: differentiating
 P: 357 I'm having some trouble differentiating $x^{\sqrt x }$. I know that the derivative of $x^{\sqrt x }$ probably begins with $x^{\sqrt x } \cdot \ln (x) \cdot \frac{1}{{2\sqrt x }}$ but once the base is also x then there is probably more to it than that. Anyone?
 HW Helper PF Gold P: 1,197 You have $$y=x^{\sqrt x }$$ So, $$\ln y = (\sqrt x)(\ln x)$$ Then differentiate both sides with respect to x and substitute the value of y.