va rog ajutati ma......

A={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}
B={2,3,4}
A ∩ B={2,3,4}
AUB={1,2,3,4,5,6,7,8,9,10,11,12,13,4,15,16}
A\B={1,5,6,7,8,9,10,11,12,13,14,15,16}
B\A={∅}