यदि `A={a,b,c,d}` पर R निम्नलिखित सम्बन्ध है :
`R={(a,c)(a,d)(c,b)(c,c)(c,d)}` तो R का डोमेन तथा परास क्या है ?

If A = {a, b, c, d} then a relation R = {(a, a), (b, b), (c, c), (d, d)} on A is :

When is a relation R on a set A not reflexive ? Let A {a,b,c,d} and R be a relation on A given by R= {(a,a), (a,c), (c,a) , (c,c), (d,d)}. Is R reflexive on A ?

Given a set A = {a, b, c, d}, then the relation: R={(a,a),(b,b),(c,c),(d,d)} is reflexive?.

If Set A= .{a, b, c, d} and R = { (a, a), (a, b), (a, c), (b, c), (b, d), (c, d),(d, a)} be a relation on set A, then R is :