If , , and , find .
Step 1: Find .
is the set of elements that belong to set and do not
belong to set . If there are no elements in the set, we can use
the symbol to represent a null or empty set.
Step 2: Find .
The symbol indicates the intersection of two sets, or the
set of all common elements in both sets. Since one of these sets
is a null or empty set , the intersection of the two sets
is also null or empty .