Question

1) Dados os conjuntos A = {7,8,9,10} e B = {8,9,10,11,12}, determine:
a) A ∩ B =
b) A U B =
c) A – B =
d) B – A =
2) Sendo os conjuntos A = {11, 12, 13, 14, 15, 16, 17, 18, 19} e B = {10, 11, 12,
13, 14}, determine:
a) A ∩ B =
b) A U B =
c) A – B =
d) B – A =

Answer 1

Resposta:

1)  

a) A ∩ B = {8,9,10}

b) A U B = {7,8,9,10,11,12}

c) A – B = {7}

d) B – A = {11,12}

2)  

a) A ∩ B = {11,12,13,14}

b) A U B = {10,11,12,13,14,15,16,17,18,19}

c) A – B = {15,16,17,18,19}

d) B – A = {10}