For sets A and B- nA- B-nB- A-

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For sets A an...

Question

For sets $A$ and $B,$ $n (A \times B) = n (B \times A) .$

True

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False

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A, B & C,

n (A \cup B \cup C) = n (A) + n (B) + n (C)

- n (A \cap B) - n (B \cap C) - n (C \cap A)

+ n (A \cap B \cap C)

A & B; n (A - B) =

and n (B - A) =

A

B

n (A) = 20

n (A \cap B) = 4

n (A \cup B) = 42

n (A \cup B) = 42

n (A \cap B) = 4

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