Question

Dados os conjuntos A={1,2,3,4}, B={2,4,6,8} e C={1,3,5,7}, encontre:
a) A∪B
b) A∩B
c) C∪B
d) A∪B∪C
e) A∩B∩C
f) A−B
g) (A−C)∩B
h) (B−A)∪(A−C)
i) (A−B)∩(A∩C)

Answer 1

Resposta:

A={1,2,3,4} || B={2,4,6,8} || C={1,3,5,7}

a) A ∪ B  = {1, 2, 3, 4, 6, 8}

b) A ∩ B  = {2, 4}

c) C ∪ B  = {1, 2, 3, 4, 5, 6, 7, 8}

d) A ∪ B ∪ C  = {1, 2, 3, 4, 5, 6, 7, 8}

e) A ∩ B ∩ C  = { } = ∅

f) A − B = {1, 3}

g) (A − C) ∩ B  = {2, 4}

h) (B − A) ∪ (A − C)  = {2, 4, 6, 8}

i) (A − B) ∩ (A ∩ C) = {1, 3}