d) A and B are two subsets of a universal set U in which there are n (U) = 43,
n (A) = 25, n (B) = 18 and n(An B) = 7.
(i) Find the value of n (AUB)
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Answer:
36
Step-by-step explanation:
n(AUB)=n(A)+n(B)-n(AnB)
n(AUB)=25+18-7
=43-7
=36
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