WorksheetsExploring Set Notation
Total questions: 15
Worksheet time: 8mins
What does the symbol ∈ represent in set theory?
The symbol ∈ represents membership in set theory.
The symbol ∈ denotes the complement of a set.
The symbol ∈ indicates the intersection of sets.
The symbol ∈ represents the union of sets.
If A = {1, 2, 3} and B = {2, 3, 4}, what is A ∩ B?
{1, 2, 3, 4}
{2, 3}
{2, 3, 4}
{1, 4}
How would you denote the empty set?
∅
{}
null
[]
What does the symbol ⊆ mean?
Intersection
Superset
Subset
Union
If A = {x | x is an even number}, what is an example of an element in A?
7
5
3
2
What is the union of sets A and B denoted as?
A & B
A ∪ B
A + B
A - B
If A = {1, 2, 3} and B = {3, 4, 5}, what is A ∪ B?
{1, 2, 3}
{3, 4}
{1, 2, 5}
{1, 2, 3, 4, 5}
What does the notation A - B represent?
Intersection of sets A and B.
Set difference between A and B.
Complement of set A with respect to B.
Union of sets A and B.
If C = {x | x is a prime number}, what is C ∩ {2, 3, 4, 5}?
{2, 4}
{2, 3, 5}
{3, 4, 5}
{4, 5}
How do you denote the power set of a set A?
P(A) or 2^A
A^2
P(A) + A
S(A)
If D = {1, 2, 3}, what is the cardinality of D?
3
1
2
4
What does the symbol ∅ represent?
The empty set
A subset of all sets
A null value
The universal set
If E = {x | x is a natural number}, what is an example of an element not in E?
-1
0
-10
3.5
What is the difference between a subset and a proper subset?
A proper subset can be equal to the original set.
A subset must always contain at least one element.
A subset is always larger than a proper subset.
A subset can be equal to the original set, while a proper subset cannot.
If F = {a, b, c}, what is the set of all subsets of F called?
Universal set
Element set
Power set
Subset collection
