Question

If n(A) = 8 and n(A n B) = 2, then n(p(A - B)) is
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Answer 1

Answer:

2

Step-by-step explanation:

n(A∪B)=n(A)+n(B)−n(A∩B)−−−−−−−(1)

Given n(A)=7

n(B)=9

n(A∪B)=14

Substituting in 1

14=7+9−n(A∩B)

⇒n(A∩B)=16−14=2

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Answer 2

Step-by-step explanation:

8-2=6

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so 6 is the answer

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