x^4 + y^4

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x^4 + y^4

by aatech » Sat May 31, 2008 11:20 am
Is x^4 + y^4 > z^4

1) x^2 + y^2 > z^2
2) x+y > z

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by netigen » Sat May 31, 2008 12:18 pm
Ans is E

Best way is to plug numbers

x=y=z =1 we get yes
x=3 y=3 and z=4 we get no

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by aatech » Sat May 31, 2008 12:41 pm
Yes, OA is E