Question

Misal A ={1,2,3} dan B={2,1,5},.maka (A U B)-A?

Answer 1

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

Answer 2

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