Question

If n(A)=5, n(B)=7 and n(A n B) =3 , find n( AUB) ?
please give answer with solution
I will mark as brainliest ​

Answer 1

Answer:

12

hope it helps you

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Answer 2

Here is the answer...

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

= 5 + 7 - 3

= 12 - 3

= 9