Diketahui S = {1, 2, 3, 4, 5, 6, 7, 8}, A = {1, 2, 3}, dan B = {3, 4, 5, 6}. Anggota dari (A – B) ∩ B adalah
Jawab:
S = {1, 2, 3, 4, 5, 6, 7, 8}
A = {1, 2, 3}
B = {3, 4, 5, 6}
maka A-B= {1, 2, 3} – {3, 4, 5, 6} = {1,2}
(A-B)∩B= {1,2} ∩ {3, 4, 5, 6}= { }