Question

7. Let U be the universal set, and A and B be any two sets. If n(U) = 20, n(A) = 12, n(B) = 4 and
n(AintersectB)' = 17, find the following.
(i) n(AintersectB)
(ii) n(AUB)
(iii) n(A-B)
(iv) n(B-A)
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Answer 1

Answer:

(ii) n(AUB)

Step-by-step explanation:

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