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PS : SQRT

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VP
VP
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Joined: 30 Jun 2008
Posts: 1033

Kudos [?]: 689 [0], given: 1

PS : SQRT [#permalink]

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New post 29 Oct 2008, 00:43
00:00
A
B
C
D
E

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(N/A)

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0% (00:00) correct 0% (00:00) wrong based on 0 sessions

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Director
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Joined: 23 May 2008
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Re: PS : SQRT [#permalink]

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New post 29 Oct 2008, 00:48
think it has to be 5 to be a negative sqrt

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Senior Manager
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Re: PS : SQRT [#permalink]

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New post 29 Oct 2008, 00:55
Any -ve number under a square root is imaginary - crude definition.

Here sqrt(5) is ~2.2 > 2. Hence Sqrt (2-2.2) is -ve and hence an imaginary number.

Hence (E)
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VP
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Joined: 30 Jun 2008
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Re: PS : SQRT [#permalink]

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New post 29 Oct 2008, 00:59
Ahhh !! Basics :oops:
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Re: PS : SQRT   [#permalink] 29 Oct 2008, 00:59
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