Home › Bihar Board Class 12 (Commerce) › Mathematics › Relations and Functions › A relation R on A is reflexive when which pairs …
A relation R on A is reflexive when which pairs lie in R?
A(b, a) whenever (a, b) is in R
B(a, b) for every a, b in A
C(a, a) for each element a of A
D(a, c) when (a, b), (b, c) in R
Answer & Solution
Correct answer: C. (a, a) for each element a of A
Reflexivity needs every element to be related to itself, so each pair (a, a) must be present.
Related questions
Which two relations on a set A are called the extreme relations?If f(4) = 5 and g(5) = 11, what is gof(4)?A function that is not one-one is described by which term?How are functions related to the general idea of a relation?A relation R is transitive when (a1, a2) and (a2, a3) in R imply what?The empty relation and the universal relation are together known as what?The inverse g of an invertible f : X → Y satisfies which pair of equations?For f : N → Y with f(x) = 4x + 3 onto Y, which formula gives the inverse g(y)?