# Rationalizing denominator

#### downthesun01

I just need to understand how rationalized $$\displaystyle \frac{2}{\sqrt{2\pi}}$$ to get $$\displaystyle \sqrt{\frac{2}{\pi}}$$

When I rationalized, I just multiplied by $$\displaystyle \frac{\sqrt{2\pi}}{\sqrt{2\pi}}$$ and got $$\displaystyle \frac{\sqrt{2\pi}}{\pi}$$

#### chiro

MHF Helper
Hey downthesun01.

Hint: 2 = SQRT(2)*SQRT(2) and SQRT(2*pi) = SQRT(2)*SQRT(pi).

1 person

#### Prove It

MHF Helper
The result does not have a rational denominator. It is just a simplification.