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Junior | Next Rank: 30 Posts
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by shamanth » Wed Dec 14, 2011 11:38 am
I tried searching the posts but couldn't find so I hope someone can help me out.

If K is not equal to 0, 1, or -1, is 1/k>0

(1) 1/(k-1)>0

(2) 1/(k+1)>0

many thanks
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by GMATGuruNY » Wed Dec 14, 2011 11:57 am
I posted an explanation here:

https://www.beatthegmat.com/inequalities-t74078.html
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