Is A^B positive?
(1) B^A is positive
(2) B is negative
Hi, i could not find this question with the search function:
B = negative, then A even and positive
B = positive, then A even or odd and positive or negative
B = negative and if A positive, then A^B positive. But if A negative, then A^B negative
--> not sufficient
B = negative
A = must be even and positive
--> If A positive, then A^B is positive
Do i think wrong here? Cause the explanation states: Statements (1) and (2) combined are insufficient. Consider B = -2
, A = 2
(the answer is "yes") and B = -1
, A = -2
(the answer is "no").