Week 6 True or False questions

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)cTrue 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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