If A and B are two finite sets, then n(A) + n(B) is equal to _________ If A and B are two finite sets, then \[ n(A \cup B) = n(A) + n(B) – n(A \cap B) \] Therefore, \[ n(A) + n(B) = n(A \cup B) + n(A \cap B) \] Answer \[ \boxed{n(A […]
If A and B are two finite sets , then n(A) + n(B) is equal to _________ Read More »
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