Math, asked by kashyaptannu891, 2 months ago

If n (A) = 12, n (B) = 20, and A C B, find n (AUB)

Answers

Answered by stuarthy11431

2

Answer:

n(AUB)=n(A)+n(B)-n(A∩B)

=12+20-12. (as A⊂B, A∩B=12)

=20

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