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# PS simple but confusing square root

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Manager
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PS simple but confusing square root [#permalink]  01 Feb 2009, 20:09
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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
the square of 5 ^ sqroot(2) = ?
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Re: PS simple but confusing square root [#permalink]  01 Feb 2009, 20:16
giantSwan wrote:
the square of 5^sqroot(2) = ?

using excel:

= $$(5^{sqrt2})^2$$
= $$(5^{1.4142})^2$$
= $$(9.74)^2$$
= $$94.84$$
Edited....
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Re: PS simple but confusing square root [#permalink]  01 Feb 2009, 22:38
But doesn't the question mean Square of (5 to the power square root 2)?

In which case the answer is 25

Square of (5^sq.root(2)).

Cheers,
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Re: PS simple but confusing square root [#permalink]  02 Feb 2009, 00:21
giantSwan wrote:
the square of 5 ^ sqroot(2) = ?

square of 5 ^ sqroot(2)
$$= 5^sqrt(2)*5^sqrt(2) = 5^{2sqrt(2)}$$
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Re: PS simple but confusing square root [#permalink]  02 Feb 2009, 05:18
I agree with suresh
x2suresh wrote:
giantSwan wrote:
the square of 5 ^ sqroot(2) = ?

square of 5 ^ sqroot(2)
$$= 5^sqrt(2)*5^sqrt(2) = 5^{2sqrt(2)}$$
Re: PS simple but confusing square root   [#permalink] 02 Feb 2009, 05:18
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