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 _ _ _ _ _.

Sets, Relations and Functions: JEE Main 2024 Mathematics question

JEE Main 2024 · 29 Jan, Evening shift · Q5366

JEE Main 202429 Jan, Evening shiftMathematicsEasySets, Relations and Functions168× since 2002

If R is the smallest equivalence relation on the set

\{1,2,3,4\}

such that

\{(1,2),(1,3)\} \subset \mathrm{R}

, then the number of elements in

\mathrm{R}

is __________.