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# if x is NOT 0 and x = sqrt(4xy-4y^2), in terms of y, x=?

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Director
Joined: 05 Jan 2008
Posts: 707
Followers: 3

Kudos [?]: 152 [0], given: 0

if x is NOT 0 and x = sqrt(4xy-4y^2), in terms of y, x=?  [#permalink]  24 May 2008, 05:08
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if x is NOT 0 and x = sqrt(4xy-4y^2), in terms of y, x=?

(A) 2y
(B) y
(C)
(D)
(E) –2y
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Director
Joined: 05 Jan 2008
Posts: 707
Followers: 3

Kudos [?]: 152 [0], given: 0

Re: PS: x in terms of y [#permalink]  24 May 2008, 06:28
yup thx, the given OA was C with some weird fraction. I was sure that A is correct, but wanted to run it by other fellas.. thanks
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Current Student
Joined: 28 Dec 2004
Posts: 3390
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 182 [0], given: 2

Re: PS: x in terms of y [#permalink]  24 May 2008, 06:53
well i dont see any values for ans choice C..

what are the ans choices?
Re: PS: x in terms of y   [#permalink] 24 May 2008, 06:53
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