Question

if n(A_B)=x,n(B_A)=y and n(A intersection B)=z then find n(AuB)


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Answer 1

Answer:

n(A-B)=x

n(B-A)=y

n(A intersection B) =z

n(AuB)=n(A-B) +n(A intersection B) +n(B-A)

n(AuB) =x+z+y

Step-by-step explanation:

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