9**(1/2)=3.0. How!!

Answer 1

x**0.5 equals the square root of x
The square root of 9 is 3.
(or -3 if we stick to real numbers only)

Answer 2

thnx guy

Answer 3

Any number x to the power of 1/2 is the same as the square root of x. This is an actual mathematical rule.