A relation R on a set S, defined as x R y if and only if y R x. This is an example of?

Category: QuestionsA relation R on a set S, defined as x R y if and only if y R x. This is an example of?
Editor">Editor Staff asked 1 month ago

A relation R on a set S, defined as x R y if and only if y R x. This is an example of?
 
(a) reflexive relation
 
(b) symmetric relation
 
(c) transitive relation
 
(d) invalid relation
 
I want to ask this question from Trees in section Trees of Data Structures & Algorithms I
 
This question was posed to me in homework.

1 Answers
Editor">Editor Staff answered 1 month ago

Right answer is (b) symmetric relation
 
Explanation: A symmetric property in an equivalence relation is defined as x R y if and only y R x.