Respostas

2013-12-07T18:20:37-02:00
A U B = [ 1,2,3,4,5 ]
BUA  = [ 1, 2, 3 ,4,5 ]
 A ∩ B = [ 1, 3 ]
A∪∅ = [ 1, 2, 3 ]
A∩∅" = ∅"