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
? Question basically asks are a
both positive or both negative.
--> both a
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
answer would be NO but if a=1
answer would be YES. Not sufficient.
(1)+(2) Example from (2) is still valid. Not sufficient.