If R is the smallest equivalence relation on the set { 1,2,3,4} such that {(1,2),(1,3)} subset R, then the number of elements in R is .: Relation (Mathematics) Question | DivineJEE

If R is the smallest equivalence relation on the set { 1,2,3,4} such that {(1,2),(1,3)} subset R, then the number of elements in R is .: Relation (Mathematics) Question | DivineJEE | divineJEE