Question

alguém pode me ajudar???​

Answer 1

Resposta:

Explicação passo-a-passo:

a) A x B = {(1, 1), (1, 13), (3, 1), (3, 13), (10, 1), (10, 13), (15, 1), (15, 13)}

b) B x A = {(1, 1), (1, 3), (1, 10), (1, 15), (13, 1), (13, 3), (13, 10), (13, 15)}