Question

Seo conjunto A é dado por A = {10, 11, 12, 15, 18}, além disso,B ∩ A = {10, 12, 15} e B ∪A = {10, 11, 12, 13, 14, 15, 16, 17, 18}, determine o conjunto B.

Answer 1

Resposta:

A = {10, 11, 12, 15, 18}

B ∩ A = {10, 12, 15}

B ∪ A = {10, 11, 12, 13, 14, 15, 16, 17, 18}

logo, B = {10, 12, 13, 14, 15, 16, 17}