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Source: — Data Sufficiency |
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by cramya » Sat Mar 14, 2009 7:58 pm
If Z^n=1, what is the value of Z

1. n is a non-zero Integer.

1^1 = 1

-1 ^ 2 = 1

INSUFF


2. Z>0


2^0 = 1
3^0 = 1 ETC...


INSUFF


Together:

z has to be 1

SUFF

Choose C

Hope this helps!

Regards,
CR
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Yes that helps

by gmat740 » Sat Mar 14, 2009 10:43 pm
Thanks a lot.

I made a foolish mistake in my approach
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