# rational exponents..

• December 15th 2010, 06:25 AM
junebug017
rational exponents..
rewrite with rational exponents

(square root symbol) 2
• December 15th 2010, 06:55 AM
TheEmptySet
Quote:

Originally Posted by junebug017
rewrite with rational exponents

(square root symbol) 2

For any number $x > 0$ we have $\displaystyle \sqrt[b]{x^{a}}=x^{\frac{a}{b}}$

Also remember that $\sqrt{x}=\sqrt[2]{x}$.
That is, if the index on the radical is 2 they do not write it explicitly.