Hi
Please help solve the attached.
Thanks,
J
Please help solve the attached.
Thanks,
J
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Is x^4 + y^4 > z^4 ?jkelk wrote:Hi
Please help solve the attached.
Thanks,
J
(1) x² + y² > z²
If x = 1, y = 1, z = 0, then x^4 + y^4 > z^4
If x = 5, y = 6, z = 7, then x^4 + y^4 < z^4
No definite answer; NOT sufficient.
(2) x + y > z
If x = 1, y = 1, z = 0, then x^4 + y^4 > z^4
If x = 5, y = 6, z = 7, then x^4 + y^4 < z^4
No definite answer; NOT sufficient.
Combining (1) and (2), we can take the same examples as in statements 1 and 2 above; NOT sufficient.
The correct answer is E.
