Question

A reunit cu B={5,4,3,2,1,6,7,8},
(A reunit cu B)-{3,5,7,9,11},
Vă rog mult AJUTOR​

Answer 1

AUB\{3,5,7,9,11}={5,4,3,2,1,6,7,8}\{3,5,7,9,11}={4,2,1,6,7,8}