Set Elements Identification

What is a set in mathematics?

• A set in mathematics is a form of transportation

• A set in mathematics is a collection of distinct objects.

• A set in mathematics is a type of fruit

• A set in mathematics is a group of animals

Which symbol is used to represent a set?

• ( )

• < >

• [ ]

• { }

If a set has elements {1, 2, 3}, how many elements does it contain?

• 3

• 4

• 5

• 1

What is the cardinality of an empty set?

• 2

• 3

• 1

• 0

Identify the elements in the set {apple, banana, orange}.

• pear

• grape

• watermelon

• apple, banana, orange

True or False: Sets can contain duplicate elements.

• True

• True, but only in certain cases

• True, if the elements are of different types

• False

If A = {1, 2, 3} and B = {3, 4, 5}, what is the intersection of sets A and B?

• {2, 5}

• {3}

• {1, 2, 3, 4, 5}

• {1, 4}

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

• {1, 2}

• {2, 4}

• {1, 3}

• {3, 5}

If A = {a, b, c} and B = {b, c, d}, what is the union of sets A and B?

• {a, b, c, d}

• {a, b, c}

• {a, b, d}

• {a, c, d}

Identify the subset relationship between sets A = {1, 2, 3} and B = {1, 2, 3, 4}.

• Set A is not a subset of set B.

• Set B is a subset of set A.

• Set A is a subset of set B.

• Set A and set B are disjoint sets.