Question

Misal A=(1,2,3) dan B=(2,1,5),maka (A υ B) - A

Answer 1

A U B = { 1,2,3,5} - A {1,2,3} = {5}

Answer 2

(A U B) = {1,2,3,5}
JADI (A U B) - (A) = {5}