# Sqrt(xy)/y simplification?

1. Feb 18, 2016

### Marcin H

1. The problem statement, all variables and given/known data
I just had a simplification question. How is (sqrt(xy))/y the same thing as sqrt(x/y)??

2. Relevant equations
none

3. The attempt at a solution
I don't see how you can get that. I tried square rooting the top and bottom, but I don't think that gets you anywhere...

2. Feb 18, 2016

### SammyS

Staff Emeritus
If y > 0, then $\ y=\sqrt{y^2}\ .\$ Right ?