If a and b are integers and a is not equal to b, is ab > 0?
(1) a^b > 0
(2) a^b is a non-zero integer
I got the answer E is the answer Correct as i dnt have the official answer to this question
Is \(ab>0\)? Question basically asks are \(a\) and \(b\) both positive or both negative.
(1) \(a^b>0\) --> both \(a\) and \(b\) could be positive as well as \(a\) could be positive and \(b\) negative. Not sufficient.
(2) a^b is a non-zero integer --> if \(a=1\) and \(b=-1\) answer would be NO but if \(a=1\) and \(b=2\) answer would be YES. Not sufficient.
(1)+(2) Example from (2) is still valid. Not sufficient.