Question

1- DADOS A = {3,2,5} e B={2,6,7} DETERMINE :
a)AxB
b)BxA

Answer 1

Resposta:

Explicação passo a passo:

A x B = {(3; 2), (3; 6), (3; 7), (2; 2), (2; 6), (2; 7), (5; 2), (5; 6), (5; 7)}

B x A = {(2; 3), (2; 2), (2; 5), (6; 3), (6; 2), (6; 5), (7; 3), (7; 2), (7; 5)}

Note que A x B ≠ B x A