PowerPrep D.S.

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PowerPrep D.S.

by GMATJeff » Sat Nov 29, 2008 4:43 pm
Can anyone provide an Explanation to this problem?

1. Is x^4 + y^4 > z^4?

(A) x^2 + y^2 > z^2
(B) x + y > z

The answer is E.


Thank You!

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by cramya » Sat Nov 29, 2008 5:05 pm