Respostas

2014-02-19T08:27:16-03:00
A = {1,2,3,4}
B = {2,3,4,5}
C = {1,2,3,4,5}

C-B = {1}
C-(A П B) =...
A П B = {1,5}
C - (A П B) = {2,3,4}