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Mathematics
Mathematics
Problem
7. Let
A
=
{
1
,
2
,
3
}
\mathrm{A}=\{1,2,3\}
A
=
{
1
,
2
,
3
}
. Then number of equivalence relations containing ( 1,2 ) is (A) 1 (B) 2 (C) 3 (D) 4 (A) 1 (B) 2 (C) 3 (D) 4
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