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# PS : SQRT

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VP
Joined: 30 Jun 2008
Posts: 1018

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29 Oct 2008, 00:43
00:00

Difficulty:

(N/A)

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

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Director
Joined: 23 May 2008
Posts: 756

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29 Oct 2008, 00:48
think it has to be 5 to be a negative sqrt
Senior Manager
Joined: 29 Mar 2008
Posts: 345

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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
Joined: 30 Jun 2008
Posts: 1018

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29 Oct 2008, 00:59
Ahhh !! Basics

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Re: PS : SQRT   [#permalink] 29 Oct 2008, 00:59
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