Step-by-step explanation:
Letter: A
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Answer: A n (BUC) = (2, 3, 5, 8)
BUC simply means the union of the sets of B and C
A n (BUC) means the common numbers in set A and the set of BUC
BUC = (2, 3, 4, 5, 7, 8)
A n (BUC) = (2, 3, 5, 8)
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