Question

Considerando os conjuntos = {7,8,9,10,11} = {9,10,11,12,13}

a) A ∪ B

b) A ∩ B

c) A − B

d) B − A​

Answer 1

AUB = {7,8,9,10,11,12,13}.

A∩B = { 9,10,11}

A-B= {7,8}

B-A = {12,13}