Question

Dados os conjuntos A= {2, 8, 12, 14}, B= {5, 10, 15, 20, 25} e C= {1, 2, 3, 18, 20}, Determine: A) A - C B) B - C C) (C - A) n (B - C) D) (A - B) n (C - B)

Answer 1

a) A - C = {8,12,14}

b) B - C = {5,10,15,25}

c) (C - A) ∩ (B - C) = {1,3,18,20} ∩ {5,10,15,25} = ∅ ou { }

d)(A - B) ∩ (C - B) = {2,8,12,14} ∩ {1,2,3,18} = {2}