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If the square root of t is a real number, is the square root

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If the square root of t is a real number, is the square root [#permalink] New post 09 Apr 2013, 15:32
00:00
A
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E

Difficulty:

  5% (low)

Question Stats:

21% (01:34) correct 79% (00:44) wrong based on 14 sessions
If the square root of t is a real number, is the square root of t positive?

(1) t > 0
(2) t^2 > 0
[Reveal] Spoiler: OA

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Re: If the square root of t is a real number, is the square root [#permalink] New post 10 Apr 2013, 00:12
Expert's post
Rock750 wrote:
If the square root of t is a real number, is the square root of t positive?

(1) t > 0
(2) t^2 > 0


I wouldn't worry about this question at all since it deals with a subtle difference between writing "the square root of t" and "\sqrt{t}". You won't see such question on the real test.
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Re: If the square root of t is a real number, is the square root [#permalink] New post 10 Apr 2013, 00:26
1. t is positive. Square root of t can be either positive or negative. Not sufficient.
2.t^2 is positive and square root of t is a real number.So t should be positive and square root of t can be positive or negative.
Not sufficient.

Combining both statements,we can not proceed further.

Ans : Option E.
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Re: If the square root of t is a real number, is the square root   [#permalink] 10 Apr 2013, 00:26
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If the square root of t is a real number, is the square root

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