Sets

1. The Union of Sets is the set whose elements are contained in either Set A or Set B or both.

• True

• False

If A = {a, e, i} and B = {a, e, i, o, u}, then A ∩ B = {a, e, i}.

• True

• False

The complement of a set is the set of elements in A but not in B.

• True

• False

If A = {1, 2, 3, 4, 5} and B = {1, 3, 5}, then A ∪ B = A.

• True

• False

The intersection of sets, is the set containing the elements that are in both A and B.

• True

• False

Let A = {1, 2, 3, 4, 5} B = {2, 3, 4} C = {2, 4, 6, 8}, Find A U B

• {1, 2, 3, 4, 5}

• {1, 3, 5}

• { }

• {2, 3, 4}

Let A = {1, 2, 3, 4, 5} B = {2, 3, 4} C = {2, 4, 6, 8}, Find A ∩ C

• {1, 2, 3, 4, 5}

• {1, 3, 5}

• {2, 4, 6, 8}

• {2, 4}

U = { a, c, d, e, i } M = { a, e, i } N = { i, c, e } find N’

• { a, e, i }

• { a, d }

• { a, c, d, e }

• { c, d }

A set has limited number of elements is called

• Infinite set

• Finite set

A set has no elements is called

• Null set

• Empty set

• Singleton

• Void set