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Difficulty—
If \(x\) and \(y\) are integers, is \(x = -1?\)
(1) \(x^y\cdot y^x = 1\)
(2) \(x = y\)
Answer: E
Source: e-GMAT
(1) \(x^y\cdot y^x = 1\)
(2) \(x = y\)
Answer: E
Source: e-GMAT
