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# Find an integer n?

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SVP
Joined: 03 Feb 2003
Posts: 1545

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22 May 2003, 01:09
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Difficulty:

15% (low)

Question Stats:

76% (00:53) correct 24% (00:36) wrong based on 62 sessions

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Find an integer n?

(1) |n|^|n| = 4

(2) n^4 = 16
Intern
Joined: 14 Aug 2010
Posts: 14
Re: Find an integer n?  [#permalink]

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16 Aug 2010, 08:13
I don't understand... why couldn't it be A?

1) Sufficient?
2^2 = 4.
-2^-2 = 1/2*1/2 = 1/4.

2) Insufficient. It could be 2 or -2.

Math Expert
Joined: 02 Sep 2009
Posts: 54376
Re: Find an integer n?  [#permalink]

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16 Aug 2010, 09:55
I don't understand... why couldn't it be A?

1) Sufficient?
2^2 = 4.
-2^-2 = 1/2*1/2 = 1/4.

2) Insufficient. It could be 2 or -2.

I thin it's $$|n|^{|n|}=4$$

Find an integer N.

(1) $$|n|^{|n|}=4$$ --> $$n=2$$ or $$n=-2$$. Not sufficient.

(2) $$n^4=16$$ --> $$n=2$$ or $$n=-2$$. Not sufficient.

(1)+(2) Still the same two values of $$n$$ are possible. Not sufficient.

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Re: Find an integer n?  [#permalink]

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14 Aug 2017, 04:14
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Re: Find an integer n?   [#permalink] 14 Aug 2017, 04:14
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