Let . Then number of equivalence relations containing ( 1,2 )…

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

7. Let

\mathrm{A}=\{1,2,3\}

. Then number of equivalence relations containing ( 1,2 ) is (A) 1 (B) 2 (C) 3 (D) 4