Is x^4 + y^4 > z^4? 1. x^2 + y^2 > z^2 2. x + y > z : Quant Question Archive [LOCKED]
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Is x^4 + y^4 > z^4? 1. x^2 + y^2 > z^2 2. x + y > z

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Is x^4 + y^4 > z^4? 1. x^2 + y^2 > z^2 2. x + y > z [#permalink]

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New post 25 Nov 2006, 18:44
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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

1. x^2 + y^2 > z^2
2. x + y > z
Senior Manager
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New post 25 Nov 2006, 21:06
some one already asked this some time ago...

answer is E.

x=y=3 z=4 is a counter example for both st1 and st2.
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New post 26 Nov 2006, 17:15
Can anyone provide the link to the previous posting? Good question.
  [#permalink] 26 Nov 2006, 17:15
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Is x^4 + y^4 > z^4? 1. x^2 + y^2 > z^2 2. x + y > z

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