Question

the first derivative dy/dx for the function y=5x^-1/2  is

Answer 1

$y= \frac{5}{ \sqrt{x}}$
$\frac{dy}{dx}= \frac{-5}{2x^{\frac{3}{2}} } =\frac{-5}{2x \sqrt{x} }$

Answer 2

$\sqrt{x}$Differtiating y with respect to x , we get dy/dx=minus 5/2x2rootx