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If \(xy \ne 0,\) is \(x^3 + y^3 > 0?\)
(1) \(x + y > 0\)
(2) \(xy > 0\)
Answer: A
Source: Official Guide
(1) \(x + y > 0\)
(2) \(xy > 0\)
Answer: A
Source: Official Guide
