Question

If n(A) = 25, n(B) = 40, n(AUB) = 50 and n(B%) = 25 , find n(ANB) and n(U).
(ü) If n(A) = 300, n(AUB) = 500, n(ANB) = 50 and n(B') = 350, find n(B) and n(U).
If U = {x : Xe N, x S 10), A = {2,3,4,8,10) and B = {1,2,5,8,10), then verify th
n(A U B) = n(A) + n(B) - n(
AB)
Verify n(AU BUC) = n(A) + n(B) + n(C) – n(An B) - n(BOC) - n(AnC)
+(An BNC) for the following sets.
(1) A = {a,c, e, f,h}, B = {c, d, e, f} and C = {a,b,c, f}
A = {1,3,5}, B = {2,3,5,6} and C = {1,5,6,7}
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Answer 1

Answer:

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