is x^4+y^4>z^4
1. x^2+y^2>Z^2
2. x+ y>Z
number system
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I think it's E.
(1) doesn't deal with values < 1 (try x=0.99, y=.99, z=1.4)
(2) doesn't deal with negatives or values < 1
(1) doesn't deal with values < 1 (try x=0.99, y=.99, z=1.4)
(2) doesn't deal with negatives or values < 1
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