Question

. If n (A) = 7, n (B) = 13, n (A ∩ B) = 4 then n (A ∪ B) = ___________ *

Answer 1

Answer:

we have n(A)=7,n(B)=13 and n(A intersection B)

Since,n(A U B)=n(A)+n(B)-n(A intersection B)=7+13-4

hence n( A U B)=16

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Answer 2

Answer:

that's ur answer

Step-by-step explanation:

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