((C)sA)∩((C)sB)=(C)s(A∩B)
2.((C)sA)∩((C)sB)={4,7,8}
s(A∪B)={4,7,8}
((C)sA)∩((C)sB)=C)s(A∪B)
Known complete works S={ 1, 2, 3, 4, 5, 6, 7, 8}, A={2, 3, 5, 6}, B={ 1, 3, 5, 7}.
1.((C)sA)∨((C)sB)= { 1,2,4,6,7,8}
(C)s(A∩B)={ 1,2,4,6,7,8 }((C)sA)∩((C)sB)=(C)s(A∩B)
2.(C)sA)∩((C)sB)={4,8}
s(A∪B)={4,8}
((C)sA)∩((C)sB)=C)s(A∪B)