Question

Dados os conjuntos A={x∈ Z/ -1 < x ≤17}. B= {x ∈ N/ x é impar} e C= {x ∈ N/ 9 ≤ x ≤ 18} dertermine o conjunto D=( A∩B) - C

Answer 1

A = {0,1,2,3,...,17}

B = {1,3,5,7,...}

C = {9,10,11,12,13,14,15,16,17,18}

A ∩ B = {1,3,5,7,9,11,13,15,17}

D = (A ∩ B) - C = {1,3,5,7}