If z^n = 1, what is the value of z? (DATA Sufficiency)

[jnelson0612]

Nice, mohan! Sounds as if you've done some great learning and review from this problem. Great work!

[RB]

I agree with what Harry said above.

Try to challenge lone sufficiency of (2) in this form:

z = (1)^(1/n)

If n is non zero, z cant be greater than 1 since it value would be undefined.

Hence, z =1.

[jnelson0612]

Wonderful discussion, everyone!