Question

Which of the following condition true.

[A] n(A∪B) =n(A) + n(B) + n(A∩B) [B] n(A∪B) =n(A) − n(B) + n(A∩B)

[C] n(A∪B) + n(A∩B =n(A) + n(B) [D] n(A∩B) =n(A) + n(B) −n(A∪B. plz guys help me help me help me help me plz plz plz ​

Answer 1

Answer:

first one is correct

Step-by-step explanation:

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Answer 2

Answer:

first one is correct

Step-by-step explanation:

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