Question

5. Se A & B e B = {10, 23, 12, {1,2}}, então A pode ser:
(A) {10}
(B) {1}
(C) {10, 23, 12
(D) {15, 12}{13,12}
(E) {10, 23, 12, {1,2}}​

Answer 1

oi vc poderia me explicar com pouco melhor :-D