(Q9).In each of the following, state whether A = B or not.
(i) A = {a, b, c, d} ; B = {d, c, a, b}
(ii) A = {4, 8, 12, 16} ; B = {8, 4, 16, 18}
(iii) A = {2, 4, 6, 8, 10}; B = {x : x is a positive even integer and x ≤ 10}
(iv) A = {x : x is a multiple of 10}; B = {10, 15, 20, 25, 30, …}