-
prat_agl
- Senior | Next Rank: 100 Posts
- Posts: 63
- Joined: Tue Apr 06, 2010 10:01 pm
- Thanked: 4 times
- Followed by:1 members
if Z^n = 1 , what is the value of z?
1. n is non zero integer.
2. z>0
[spoiler]OA - C. Statement 1- Z can be +1 for any value of n and can be -1 when n is +ve even number. Not sufficient. Statement 2- Z can be anything when n=0 so not sufficient. Combining both Z is 1
[/spoiler]
1. n is non zero integer.
2. z>0
[spoiler]OA - C. Statement 1- Z can be +1 for any value of n and can be -1 when n is +ve even number. Not sufficient. Statement 2- Z can be anything when n=0 so not sufficient. Combining both Z is 1
[/spoiler]
