Question

In n (A) = 7 ,n (B) = 13, n ( A intersection B ) = 4 , then n (A U B ) = ?​

Answer 1

n(a)=7

n(b)=-13

n(anb)=4

=7-13-4

7-17

-10

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HØPE IT'S HELP YOU

Answer 2

Answer:

N(A) =7. N(B)=13. N((AnB)=4 n(AUB) =?

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

n (AUB=7+13-4

=20-4

= 16

n(AUB) =16

it's a King