Question

4. If n(A) = 15, n(
AB) = 29, n(
AB) = 7, n(B) = ?
wa 11a​

Answer 1

Answer:

463 is your answer... .......

Answer 2

Answer:

21

Step-by-step explanation:

n(A)+n(B)=n(AUB)+n(AnB)

15+n(B)=29+7

n(B)=36-15=21

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