Suppose that the universal set U
U
is the set defined as
U
=
{
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
10
}
U
=
{
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
10
}
.

Write the sets
A
A
and
B
B
out in roster notation.

A
=
{
x
∈
U
∣
A
=
{
x
∈
U
∣
x is an even number
}
=
{
}
=
{

}
}

B
=
{
x
∈
U
∣
B
=
{
x
∈
U
∣
x is a prime number
}
=
{
}
=
{

}
}

Find each of the following:

n
(
A
)
=
n
(
A
)
=

n
(
B
)
=
n
(
B
)
=