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If xy > 0 and yz < 0, which of the following must be negative?
A) \(xyz\)
B) \(xyz^2\)
C) \(xy^2z\)
D) \(xy^2z^2\)
E) \(x^2y^2z^2\)
The OA is C
If xy > 0 and yz < 0, which of the following must be negative?
A) \(xyz\)
B) \(xyz^2\)
C) \(xy^2z\)
D) \(xy^2z^2\)
E) \(x^2y^2z^2\)
The OA is C
