Given the relation `R= {(2,3),(3,4)}` on the set `A = {2, 3, 4}`. The number of minimum ordered pasirs to be added to R so that R is reflexive and symmetric

Let set A={1,2,3} . Then find number of ordered pairs which when added to R make it reflexive but not symmetric

Given the relation R={(1,2) (2,3)} on the set A={(1,2,3)} the minimum number of ordered pairs which when added to R make it an equivalence relation is

Given the relation R= {(1,2),(2,3)} is the set A= {1,2,3}. Then the minimum number of ordered pairs which when added to R make it an equivalence relation is :

Given the relation R={(1,\ 2),\ (2,\ 3)} on the set A={1,\ 2,\ 3} , add a minimum number of ordered pairs so that the enlarged relation is symmetric, transitive and reflexive.