Question

let R be the relation in the set { 1, 2, 3, 4 } given by R= {(1 , 2), (2 , 2), (1 , 1), (4 , 4), (1 , 3), (3 , 3), (3 , 2)}, then which of the following is true?

a. r is reflexive and symmetric but not transitive.
b. r is reflexive and transitive but not symmetric.
c. r is symmetric and transitive and not reflexive.
d. r is an equivalence relation.

Answer 1

b) r is reflexive & transitive but not symmetric