Question

How to write a square root as an exponent?

Answer 1

$\sqrt{x} = x^{\frac{1}{2}}$

A more general form is:
$\sqrt[a]{x^{b}} = x^{\frac{b}{a}}$

Answer 2

Hello : 
 a square root is : √a      a ≥ 0
as an exponent : a ^(0.5)