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x and y are positive , is x > y? a. x+y < 1 b x^2 <

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Manager
Manager
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Joined: 27 Jul 2003
Posts: 124
Location: Singapore
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x and y are positive , is x > y? a. x+y < 1 b x^2 < [#permalink] New post 21 Oct 2003, 02:59
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x and y are positive , is x > y?
a. x+y < 1
b x^2 < 2*y
SVP
SVP
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Joined: 03 Feb 2003
Posts: 1614
Followers: 5

Kudos [?]: 38 [0], given: 0

 [#permalink] New post 21 Oct 2003, 03:31
(1) not suff
(2) in order x^2<2y, x and y both have to be within (0, 1) not suff, no matter what is greater. Consider x=0.1 and y=0.2 and vice versa.

combine: not suff again, consider the same 0.1 and 0.2
E.
  [#permalink] 21 Oct 2003, 03:31
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x and y are positive , is x > y? a. x+y < 1 b x^2 <

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