GRE Math : How to find an exponent from a rational number

Study concepts, example questions & explanations for GRE Math

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Example Questions

Example Question #31 : Gre Quantitative Reasoning

Solve for .

Possible Answers:

Correct answer:

Explanation:

 

We still don't have the same base however:  

Then,

.

With same base we can set up an equation of 

Divide both sides by  and we get 

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