Question

how many formulas are there of sets​

Answer 1

Answer:

I don't know what is the answer but I will try to get the answer

Answer 2

Answer:

sets formula

If A and P are overlapping set, n ( A ∪ P ) = n ( A ) + n ( P ) – n ( A ∩ P ) n( A\cup P ) = n(A) +n(P) – n (A\cap P) n(A∪P)=n(A)+n(P)–n(A∩P)

If A and B are disjoint set, n ( A ∪ B ) = n ( A ) + n ( B ) n(A\cup B) = n(A) +n(B) n(A∪B)=n(A)+n(B)

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