Let R be an equivalence relation on a finite set A having n elements. Then the number of ordered pairs in R is

Let R be a reflexive relation on a finite set A having n elements and let there be m ordered pairs in R, then

Let R be a reflexive relation on a finite set A having n elements and let there be m ordered pairs in R, then

Let R be a reflexive relation on a finite set A having n elements and let there be m ordered pairs in R, then

If R be a relation on a finite set A having n elements, then the number of relations on A is-

If R is a relation on a finite set having n elements,then the number of relations on A is

Let R be an equivalence relation defined on a set containing 6 elements. The minimum number of ordered pairs that R should contain is