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Mathematics
Mathematics
Problem
Let
A
=
{
1
,
2
,
3
,
4
}
A=\{1,2,3,4\}
A
=
{
1
,
2
,
3
,
4
}
and
B
=
{
1
,
2
,
3
,
4
}
B=\{1,2,3,4\}
B
=
{
1
,
2
,
3
,
4
}
. Form the set
S
=
{
(
a
,
b
)
∈
A
×
B
:
a
+
b
is even
}
S=\{(a,b)\in A\times B : a+b \text{ is even}\}
S
=
{(
a
,
b
)
∈
A
×
B
:
a
+
b
is even
}
. List all elements of
S
S
S
and state
n
(
S
)
n(S)
n
(
S
)
.
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