Sets Operations Quiz 1

What does this symbol ∩ represent in set theory?

• Union

• Intersection

• Subset

• Complement

What does this symbol ∪ represent in set theory?

• Union

• Intersection

• Subset

• Complement

If A = { 1, 2, 3, 4, 5, 6} and B= { 2, 3, 8, 10, 12}

find A - B

• {2, 3}

• {1, 4, 5, 6}

• {1, 3, 4}

• {2, 4, 6}

If U = { red, blue, green, yellow, purple} and

A = {red, blue,yellow},

what is A'?

• A' = {green, purple}

• A' = {purple}

• A' = {blue, red, purple}

• A' = {red, blue green}

Given the sets
A = {2, 3, 4, 5} and B = {2, 4, 5, 6}

What is A ∪ B  ?

• {2, 4, 5}

• {2, 3, 4, 5, 6}

• {3}

• {6}

Given the sets

A = {a, b, c, d, e} and B = {a, c, d, f}

What is A ∩ B ?

• {a, c, d}

• {a, b, c, d e, f}

• {b, e}

• {f}

If A = {1, 2, 3, 4, 5, 6} and

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

What is A ⋂ B?

• {1, 2, 3, 4, 5, 6, 7, 9}

• {4, 6, 7, 9}

• { }

• {1, 2, 3, 5}

If A = {1, 2, 3, 4, 5, 6}, B = {1, 2, 3, 5, 7, 9} and C = {3, 5, 6, 7, 8, 9}

What is (A ⋃ B) ⋂ C?

• {3, 4, 5, 6, 7, 9}

• {3, 4, 5, 6, 7, 8, 9}

• {3, 5, 6, 7, 9}

• { }

If P = {0, 1, 2, 3, 4}, Q = {4, 6, 8} and R = {6, 12, 18}, then what is (P ∩ Q) ∪ R?

• {4}

• {4, 6}

• {4, 6, 8}

• {4, 6, 12, 18}

It is an operation on sets that contains elements belong to set A, but do not belong to set B.

• Complement of a Set

• Intersection of Sets

• Difference of Two Sets

• Union of Sets