Let Z be the set of integers. If A= x Z:2^ (x+2)(x^2-5x+6) =1 and B= x Z:-3<2x-1<9 , then the number of subsets of the set A B is (JEE Main 2015)

JEE Main Mathematics question

Let be the set of integers. If and , then the number of subsets of the set is (JEE Main 2015)

Answer: (A)

. . , so the number of subsets is .

Question ID VK-003263