Sets Mastery

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 not in A but are in the universal set.

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

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

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

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

• No

• Yes

• Sometimes

• Rarely

What is the result of the union of sets A = {1, 2, 3} and B = {3, 4, 5}?

• {1, 2, 3, 4, 5}

• {1, 2, 4, 5}

• {1, 2, 3, 4}

• {2, 3, 4, 5}

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

• {b, c}

• {a, c}

• {a, b}

• {a, b, c, d}

What is the complement of an empty set?

• Power set

• Null set

• Universal set

• Empty set

If set A = {1, 2, 3} and set B = {4, 5, 6}, what is A ∪ B?

• {1, 2, 3, 4, 5}

• {1, 2, 3, 4}

• {1, 2, 3, 4, 5, 6}

• {1, 2, 3, 5, 6}

If set A = {x, y, z} and set B = {x, y}, is B a proper subset of A?

• No

• Sometimes

• Yes

• Maybe

What is the intersection of two disjoint sets?

• Union

• Common set

• Complement

• Empty set

If set A = {red, green, blue} and set B = {blue, yellow}, what is A - B?

• {red, yellow}

• {red, green, yellow}

• {green, yellow}

• {red, green}

What is the result of the symmetric difference of sets A = {1, 2, 3} and B = {3, 4, 5}?

• {1, 2, 3, 4}

• {1, 2, 4, 5}

• {1, 3, 4, 5}

• {2, 3, 4, 5}