Set Notation & Venn Diagrams

Front

What does this symbol ( ∩ ) represent in set theory?

Back

Intersection: The set of elements that are common to both sets.

Front

What does this symbol ( ∪ ) represent in set theory?

Back

Union: The set of all elements that are in either set.

Front

How do you denote a subset in set notation?

Back

A ⊆ B means set A is a subset of set B.

Front

What is the complement of a set?

Back

The complement of set A contains all elements not in A.

Front

How do you represent the intersection of two sets A and B?

Back

A ∩ B represents the intersection of sets A and B.

Front

What is a Venn diagram?

Back

A visual representation of sets and their relationships.

Front

How many elements are in the union of sets A and B if A = {1, 2} and B = {2, 3, 4}?

Back

A ∪ B = {1, 2, 3, 4}, so there are 4 elements.

Front

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

Back

A ∩ B = {3}, the common element.

Front

What does it mean if two sets are disjoint?

Back

Disjoint sets have no elements in common.

Front

How do you find the number of elements in the complement of a set?

Back

Subtract the number of elements in the set from the total number of elements in the universal set.