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Answer truth or false
- True or false. A set is any collection of objects.
- True or false. A proper subset of a set is itself a subset of the set, but not vice versa.
- True or false. The empty set is a subset of every set.
- True or false. If A ∪ B = ∅ , then A = ∅ and B = ∅ .
- True or false. If A ∩ B = ∅ , then A = ∅ or B = ∅ or bothA and B are empty sets.
- True or false. (A ∪ Ac)c = ∅ .
- True or false. [A ∩ (B ∪ C)]c= (A ∩ B)c ∩ (A ∩ C)c
- True or false. n(A) + n(B) = n(A ∪ B) +n(A ∩ B)
- True or false. If A ∈ B, then n(B) =n(A) + n(Ac ∩ B).
- True or false. The number of permutations of n distinct objects taken all together is n!
- True or false. P(n, r) = r! C(n, r).
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