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josephcho77
- Senior | Next Rank: 100 Posts
- Posts: 30
- Joined: Thu Feb 22, 2007 5:56 pm
- Location: Seattle
I will go with "E"
When you combine the two condition you can get:
-y<x<y since (1) is x>-y and (2) x<y
plug simple number when x is positive and when x is negative
For example,
when x=1, y=2, we get -2<1<2 thus xy is positive
However when x=-1, y=2, we get -2<-1<2 and xy is negative
When you combine the two condition you can get:
-y<x<y since (1) is x>-y and (2) x<y
plug simple number when x is positive and when x is negative
For example,
when x=1, y=2, we get -2<1<2 thus xy is positive
However when x=-1, y=2, we get -2<-1<2 and xy is negative
