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If A and B are not disjoint sets then n(...

If A and B are not disjoint sets then n(A`cup`B) is equal to

A

n(A)+n(B)

B

n(A)+n(B)-n(A`cap`B)

C

n(A)+n(B)+n(A`cap`B)

D

n(A)n(B)

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The correct Answer is:
B
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NEW JOYTHI PUBLICATION-SETS-QUESTIONS FROM COMPETITIVE EXAMS
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