Răspuns:
A={1,2,3,4}
B={4,5,6,7,8}
C={0,1,2,4,5,6,9}
A∪B={1,2,3,4,5,6,7,8}
A∪C={0,1,2,3,4,5,6,9}
A∩B={1,4}
A∩C={1,2,4}
A/B={1,2,3}
B/C={7,8}
C/A={0,5,6,9}
C/B={0,1,2,9}
(A/B)∪(B/A)={1,2,3,5,6,7,8}
(A/C)U(C/A)={3}U{0,5,6,9}={0,3,5,6,9}
(B/C)U(C/B)={7,8}U{0,1,2,9}={0,1,2,7,8,9}
A∩B∩C={4}
