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Joe Komagawa
Average Member

Japan
11 Posts

 Posted - 12/01/2013 :  00:20:28 GMAT-the official guide, #157"A certain right triangle has sides of length X, Y, and of course Z.where Xsq.rt 2 b)sq.rt3/21/Y, I don't see why the inequality is switched. I thought it only switched when mult. by a negative something. Secondly, I want to know what is the thinking guiding 1/x >1/y. I didn't think like this when I was trying to solve this problem.2) text: Alternatively, if Xsq.rt2 and y>sq.rt.2 then xy>2. But xy =2, so one of x or y must be less than sq.rt.2 and the other must be greater than sq.rt.2, since x sq.rt.2".I am really lost in the understanding of 2)sq. rt.2 means square root. of 2

Joe Komagawa
Average Member

Japan
11 Posts

 Posted - 12/01/2013 :  00:24:15 #157 answer is A y>sq.rt.2
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