how to solve?

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Re: how to solve?

by ratindasgupta » Sun Aug 05, 2007 12:30 pm
broy wrote:if xy not equal to 0, is x/y < 0?

1. x = - y
2. -x = - (-y)

OA is D and I was thinking E.
1. x = -y, which means x/y = -1. SUFF

2. -x = -(-y), which again means x/y = -1. SUFF
Hence answer is Choice D.