Question

5) Observe os conjuntos e determine: A = {-6, -1, 0, 1, 5, 7} B = {-4, 4 3 , 1, 3, 5, 7} C = {-8, -6, 4 3 , 2 1 , 1, 3} a) A ∩ B b) C U B c) C – A d) B ∩ (A U C) e) (B ∩ C) U A f) C – (A ∩ B)

Answer 1

Resposta:

A = {-6, -1, 0, 1, 5, 7}

B = {-4, 43 , 1, 3, 5, 7}

C = {-8, -6, 43 , 21 , 1, 3}

a) A ∩ B    = {1, 5, 7}

b) C U B     = {-8, -6, -4, 1, 3, 5, 7, 21, 43}

c) C – A       = {-8, 3, 21, 43}

d) B ∩ (A U C)   = {1, 3, 5, 7}

e) (B ∩ C) U A   = {-6, -1, 0, 1, 3, 5, 7, 43}

f) C – (A ∩ B)    = {-8, -6, 43 , 21, 3}