Question

MISAL A={1,2,3} dan B={2,1,5}, maka (AUB)-A

Answer 1

(AUB)-A = {5}..maaf kalau salah:)

Answer 2

(AUB) = {1,2,3,5}
(AUB)-A = {1,2,3,5} - {1,2,3} = {3,5}