JEE Main 201912 Jan, Evening shiftMathematicsEasySets, Relations and Functions168× since 2002
Let Z be the set of integers.
If A = {x Z : 2(x + 2) (x² 5x + 6) = 1} and
B = {x Z : 3 < 2x 1 < 9},
then the number of subsets of the set A B, is