# How do you write  ""^9sqrt(y^3) as a rational exponent?

Nov 11, 2014

Remember:

$\sqrt[n]{y} = {y}^{\frac{1}{n}}$

So, we have:

$\sqrt[9]{{y}^{3}} = {y}^{\frac{3}{9}} = {y}^{\frac{1}{3}}$

I hope that this was helpful.