Question

                 1. Sendo U = {1, 2, 3, 4, 5, 6, 7, 8, 9}; A = {1, 3, 5, 7, 9}; B = {1, 2, 3, 5} e C = {2, 4, 6, 8}, calcule:

a) A ∪ C =

b) B ∪ C =

c) A ∩ B =

d) A ∩ C =

e) A – C =


f) C – A =


g) A – B =


h) B – A =
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Answer 1

Resposta:

a) A ∪ C = {1, 2, 3, 4, 5, 6, 7, 8, 9}

b) B ∪ C = {1, 2, 3, 4, 5, 6, 8}

c) A ∩ B = { 1, 3, 5}

d) A ∩ C = ∅

e) A – C = {1, 3, 5, 7, 9}

f) C – A = {2, 4, 6, 8}

g) A – B = {7, 9}

h) B – A = {2, 5}

Explicação passo a passo:

a) A ∪ C = {1, 2, 3, 4, 5, 6, 7, 8, 9}

b) B ∪ C = {1, 2, 3, 4, 5, 6, 8}

c) A ∩ B = { 1, 3, 5}

d) A ∩ C = ∅

e) A – C = {1, 3, 5, 7, 9}

f) C – A = {2, 4, 6, 8}

g) A – B = {7, 9}

h) B – A = {2, 5}