Question

If A and B are the two sets such that n(AUB) =18,n(A)and n(B)=15 find (AUB)​

Answer 1

n(A)=15, n(B)=21 & n(AUB)=21

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

36=15+21-n(AnB)

n(AnB)=36–36

n(AnB)=0

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Answer 2

Answer:

0

That means there are no common elements between Sets A and B

Step-by-step explanation:

n(A)=15, n(B)=21 & n(AUB)=21

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

36=15+21-n(AnB)

n(AnB)=36–36

n(AnB)=0