Warmup: Flashcard Review Sets and Venn Diagrams

Front

What is the union of two sets A and B?

Back

The union of two sets A and B, denoted as A ∪ B, is the set of elements that are in A, in B, or in both.

Front

What is the intersection of two sets A and B?

Back

The intersection of two sets A and B, denoted as A ∩ B, is the set of elements that are common to both A and B.

Front

Define the complement of a set A.

Back

The complement of a set A, denoted as A', is the set of all elements not in A.

Front

What does the symbol '∈' represent in set theory?

Back

The symbol '∈' means 'is an element of'. For example, if x ∈ A, then x is an element of set A.

Front

How do you find the cardinality of a set?

Back

The cardinality of a set is the number of elements in the set. For example, the cardinality of B = {-3, -1, 1, 3, 5, 7} is 6.

Front

What is the difference between A ∪ B and A ∩ B?

Back

A ∪ B includes all elements from both sets, while A ∩ B includes only the elements that are in both sets.

Tags

CCSS.HSS.CP.A.1

Front

If A = {1, 3, 5} and B = {3, 4, 5}, what is A ∩ B?

Back

A ∩ B = {3, 5}.

Front

What is the symbol for the empty set?

Back

The symbol for the empty set is '∅'.

Front

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

Back

A ∩ B = {red, yellow}.

Front

What is the result of A ∪ B if A = {1, 2} and B = {2, 3}?

Back

A ∪ B = {1, 2, 3}.