Questão 3109725

A X B = {(1,2); (1,3); (3,2); (3,3), (5,2); (5,3)}

B X A = {(2,1); (2,3); (2,5); (31), (3,3); (3,5)}

A X A = {(1,1); (1,3); (1,5); (3,1), (3,3); (3,5), (5,1); (5,3), (5,5)}

B X B = {(2,2); (2,3); (3,2); (3,3)}

B X A = {(2,1); (2,2); (2,5); (31), (3,3); (3,5)}