Example 2: Use the Venn diagram to determine each set and the number of elements in each set.
a. = b. =
c. = d. =
e. ∪ = f. ∩ =
A B
4
6
2
#
$
4
5
1

3
6
8
9
7
11
12
2




g. ∪ = h. ∩ =