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Challenge Yourself #CHAPTER1

If set A = {1, 3, 5, 7}, set B = {1, 4, 7}, find the value of A − B.

{1, 3, 5}

{3, 5, 7}

{3, 5}

{4}

If the Cartesian product of two sets A and B(A × B) = {(3, 2), (3, 4), (5, 2), (5, 4)}, find set A.

{3, 2}

{3, 4}

{3, 5}

{3, 3}

A ∪ (B ∩ C) = ____________.

A ∩ (B ∪ C)

A ∪ (B ∪ C)

(A ∪ B) ∩ (A ∪ C)

(A ∪ B) ∪ (A ∪ C)

For any set A, (A')' is equal to:

None of these

If A = {2, 3, 4} and B = {3, 5} then A ∪ B will be:

{3, 5}

{2, 3, 4, 5}

{2, 3}

Let A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Then the number of subsets of A containing exactly two elements is

If A is a subset of B and B is a subset of C, then the cardinality of A ∪ B ∪ C is equal to:

Cardinality of C.

Cardinality of B.

Cardinality of A.

If A = {x, y, z}, then the number of subsets in powerset of A is

If A = {1, 2, 5, 7} and B = {2, 4, 6} then find the number of proper subsets of A U B ?

127

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