Complement and Universal Set

What is the complement of A union B ?

• {12, 14, 15, 18, 21}

• {10, 11, 12, 14, 15, 18, 21}

• {10, 11, 13, 16, 17, 19, 20}

• {12, 14, 15}

What is the set that represents A' U B'?

• {10, 11,12,13, 14, 15, 17,18, 19 20}

• {10, 11, 12, 14, 15, 18, 21}

• {10, 11, 13, 16, 17, 19, 20}

• {12, 14, 15}

The Universal Set U= { -4, -3, -2, -1, 0, 1, 2, 3 ,4} and A = {0}.

What is the complement of A?

• {-4, -3, -2, -1, 0, 1, 2, 3}

• {-3, -2, -1, 1, 2, 3}

• {-4, -3, -2, -1, 1, 2, 3, 4}

• {-4, -3, -2, -1, 1, 2, 3}

The universal set U = {1,2, 3, 4, 5,6, 7,8, 9}

A = {1, 3, 5, 7, 9} B = {2, 3, 5, 7}

What is A' ?

• {3, 5, 7}

• {2, 3, 5, 7}

• {2, 3, 5, 7, 9}

• { 2, 4, 6, 8}

What is the set that represents A intersection B ?

• {12, 14, 15, 18, 21}

• {10, 11, 12, 14, 15, 18, 21}

• {10, 11, 13, 16, 17, 19, 20}

• {21}

What statement does the white region represent?

• A U B complement

• A ∩ B complement

• A complement

• B complement

What statement does the shaded region represent?

• A C∪ B ∩ C

• C'

• A ∪ B

• B ∩ C ∪ A

From the above Venn diagram, what is the

set (S ∩ T)'?

• {casey, drew, jade, glen}

• {alex, casey, drew, hunter}

• {jade, glen, alex, hunter, blair, erin, francis, ira}

• {drew, jade}

From the above Venn diagram, what is the set S' ?

• {casey, drew}
• {blair, francis, glen, jade}
• {blair, erin, francis, ira}
• {jade, glen, blair, erin, francis, ira}

Source WebWork.
In the Venn diagram, the blue region represent:

• AUBUC
• AUB
• The complement of A intersection C
• The complement of B intersection C