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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: 685

Kudos [?]: 603 [0], given: 0

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

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24 May 2008, 06:08
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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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Persistence+Patience+Persistence+Patience=G...O...A...L

Kudos [?]: 603 [0], given: 0

Director
Joined: 05 Jan 2008
Posts: 685

Kudos [?]: 603 [0], given: 0

Re: PS: x in terms of y [#permalink]

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24 May 2008, 07:28
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
_________________

Persistence+Patience+Persistence+Patience=G...O...A...L

Kudos [?]: 603 [0], given: 0

Current Student
Joined: 28 Dec 2004
Posts: 3350

Kudos [?]: 319 [0], given: 2

Location: New York City
Schools: Wharton'11 HBS'12
Re: PS: x in terms of y [#permalink]

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24 May 2008, 07:53
well i dont see any values for ans choice C..

what are the ans choices?

Kudos [?]: 319 [0], given: 2

Re: PS: x in terms of y   [#permalink] 24 May 2008, 07:53
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# if x is NOT 0 and x = sqrt(4xy-4y^2), in terms of y, x=?

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