U={1,2,3,4,5,6,7,8,9}, A={1,2,3,4}, B={2,4,6,8,} ,C ={3,4,5,6} find A', B' , (AuC)' , (AuB)' ,(A')' , (B-C)'
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A'=U-A=5,6,7,8,9
B'=U-B=1,3,5,7,9
auc'=0
aub'=5,7,9
(a') '=a=1,2,3,4
b-c=2,6
(b-c) '=1,3,4,5,7,8,9
B'=U-B=1,3,5,7,9
auc'=0
aub'=5,7,9
(a') '=a=1,2,3,4
b-c=2,6
(b-c) '=1,3,4,5,7,8,9
akhilu:
not correct
correct
(AuC)'={7,8,9}
auc'will be zero because after doing union we get 1 2 3 4 5 6 7 8 9 these are numbers of u on subtracting from u we get zero
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