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22 May 2003, 01:09
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
76% (00:51) correct
24%
(00:44)
wrong
based on 177
sessions
History
Date
Time
Result
Not Attempted Yet
Find an integer n?
(1) |n|^|n| = 4
(2) n^4 = 16
(1) |n|^|n| = 4
(2) n^4 = 16
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
16 Aug 2010, 08:13
Kudos
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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.
Please elaborate. Thanks!
1) Sufficient?
2^2 = 4.
-2^-2 = 1/2*1/2 = 1/4.
2) Insufficient. It could be 2 or -2.
Please elaborate. Thanks!
16 Aug 2010, 09:55
Kudos
Bookmarks
gadean18
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.
Answer: E.
