Video Transcript
Using the Venn diagram, find the
intersection of π and π bar.
Letβs begin by defining some of the
notation in this question. The little π symbol means the
intersection or and. Weβre 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.
