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tanyajoseph
- Master | Next Rank: 500 Posts
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- Joined: Wed May 30, 2007 6:17 am•Followed by: 1 member
Is (1/a-b) < b-a?
1) a<b
2) 1< |a-b|
st. 1. If a>b, then the lefthand side is negative, but the right hand side is positive. Sufficient.
st. 2. a-b>0, then a>b. -a+b>0, b>a. So insufficient.
