Fraction of Powers to whole numbers

Algebra
Tutor: None Selected Time limit: 1 Day

(9)^5/2=243

How does it get solved to that number?

Nov 4th, 2014

First consider 9^5    (forget about 1/2) 

9^5  =59049 as expected

Now fractional power 1/2 means square root

√59049=243

So (9)^5/2 =√9^5 =√59049=243

Nov 4th, 2014

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