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JEE Main Math Class 11 Sets Part 1 Questions
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© examsnet.com
Question : 5
Total: 51
If
R
is the smallest equivalence relation on the set
{
1
,
2
,
3
,
4
}
such that
{
(
1
,
2
)
,
(
1
,
3
)
}
⊂
R
, then the number of elements in
R
is
[29-Jan-2024 Shift 2]
10
12
8
15
Validate
Solution:
👈: Video Solution
Given set
{
1
,
2
,
3
,
4
}
Minimum order pairs are
(
1
,
1
)
,
(
2
,
2
)
,
(
3
,
3
)
,
(
4
,
4
)
,
(
3
,
1
)
,
(
2
,
1
)
,
(
2
,
3
)
,
(
3
,
2
)
,
(
1
,
3
)
,
(
1
,
2
)
Thus no, of elements
=
10
© examsnet.com
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