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# If xy = 1, what is the value of /? a) 2 b) 4 c) 8 d) 16 e)

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Manager
Joined: 16 Sep 2005
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If xy = 1, what is the value of /? a) 2 b) 4 c) 8 d) 16 e) [#permalink]

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25 Dec 2005, 16:34
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If xy = 1, what is the value of [2(x + y)^2]/[2(x - y)^2]?

a) 2
b) 4
c) 8
d) 16
e) 32
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VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
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25 Dec 2005, 16:58
This question has been discussed many times on this forum with no real solutions....

http://www.gmatclub.com/phpbb/viewtopic ... 984#128984
http://www.gmatclub.com/phpbb/viewtopic ... 986#125986
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