# Question Video: Performing Operations on Sets Using Venn Diagrams Mathematics

Using the Venn diagram, find π β© π bar.

01:30

### Video Transcript

Using the Venn diagram, find the intersection of π and π bar.

Letβs begin by defining some of the notation in this question. The little π symbol means the intersection or and. Weβre trying to find the set of values that are in π and in π bar. π bar, sometimes written π prime, means the complement of π. This is all the values that are not in set π.

The values in set π are two, four, five, and seven. The values in set π are four, five, six, and nine. This means that the set of values not in π are one, two, three, seven, and eight. This is the complement of π.

We need the set of values that are in π and in the complement of π. Only two numbers appear in both sets, two and seven. The intersection of π and π bar is two and seven. These are the values that are in set π and also not in set π.