Question

02) Considerando os conjuntos A = { 1, 2,4}, B = {1,3,4,5 } e C = {5, 6, 7, 8, }, determine:
a) (A U B)-C
b) (C - B) U A​

Answer 1

Resposta:

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

a) (A U B)-C

( { 1, 2,4} U {1,3,4,5 } ) -  C

( {1,2,3,4,5 } ) - {5, 6, 7, 8}

{1,2,3,4}

b) (C - B) U A​

( {5, 6, 7, 8, } - {1,3,4,5 } ) U A =

{6, 7, 8} U  {1, 2,4} =

{ 1, 2, 4, 6, 7, 8}