Set Theory By Workiye Tamirie

What is the result of the union of two sets A and B?

• A set containing all unique elements from sets A and B.

• A set containing the intersection of sets A and B

• A set containing only elements from set A

• A set containing only elements from set B

If A = {1, 2, 3} and B = {3, 4, 5}, what is A ∩ B?

• {2, 5}

• {3}

• {1, 2, 3, 4, 5}

• {1, 4}

What is the complement of a set A denoted by A'?

• The complement of a set A denoted by A' is the set of all elements that are in A and the universal set.

• The complement of a set A denoted by A' is the set of all elements that are in A.

• The complement of a set A denoted by A' is the set of all elements that are not in A but are in the universal set.

• The complement of a set A denoted by A' is the empty set.

If A = {1, 2, 3} and B = {1, 2}, is B a subset of A?

• Sometimes

• Yes

• Only on weekends

• No

What is the result of the intersection of two sets A and B?

• Intersection of sets A and B

• Symmetric difference of sets A and B

• Union of sets A and B

• Complement of set A

If A = {a, b, c} and B = {b, c, d}, what is A ∪ B?

• {a, b, d}

• {a, b, c, d, e}

• {a, c, d}

• {a, b, c, d}

What is the complement of the universal set U?

• U'

• U^c

• ∅

• U

If A = {1, 2, 3} and B = {3, 4, 5}, what is A - B?

• {1, 3}

• {1, 2, 3, 4, 5}

• {2, 4}

• {1, 2}

If A = {1, 2, 3} and B = {1, 2}, is A a subset of B?

• Sometimes

• Maybe

• Yes

• No

What is the result of the difference of two sets A and B?

• The result of the difference of sets A and B is an empty set.

• The result of the difference of sets A and B is a new set containing elements that are in set A but not in set B.

• The result of the difference of sets A and B is the union of sets A and B.

• The result of the difference of sets A and B is the intersection of sets A and B.