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Mathematics
Mathematics
Problem
For the set
A
=
{
−
1
,
0
,
1
,
2
}
A=\{-1,0,1,2\}
A
=
{
−
1
,
0
,
1
,
2
}
, consider the relation
R
=
{
(
a
,
b
)
∈
A
×
A
∣
a
<
b
}
R=\{(a,b)\in A\times A\mid a<b\}
R
=
{(
a
,
b
)
∈
A
×
A
∣
a
<
b
}
. The range of
R
R
R
is a)
{
−
1
,
0
,
1
,
2
}
\{-1,0,1,2\}
{
−
1
,
0
,
1
,
2
}
b)
{
1
,
2
}
\{1,2\}
{
1
,
2
}
c)
{
0
,
1
,
2
}
\{0,1,2\}
{
0
,
1
,
2
}
d)
{
−
1
,
0
,
1
}
\{-1,0,1\}
{
−
1
,
0
,
1
}
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