(i) A = {2, 3}
B = {2, 3}
A is not equal to B because every element of A is not a member of B & every element of B is not a member of A.
(ii) A = {W, O, L, F}
B = {F, O, L, W}
Here, A = B because every element of A is a member of B & every element of B is a member of A.