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Simplifying equation with exponents?

Posted 11 years ago
Hi,
I am trying to simplyfy an expression in Mathematica and I don't seem to find a way to do it, so I am hoping somebody in the community will be able to help me out.  I have this expression:

And I think  it should reduce to this expression:

but it doesn't.... 

Is is something about the assumptions that Mathematica is doing (and in that case, is there a way in which I can change it)?  Or am I just missing some basic math rule?

Thanks!

JP
2 Replies
Use PowerExpand[%]
POSTED BY: S M Blinder
It worked, thank you!.
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