Is it true that every relation which is symmetric and transitive is also reflexive? Give reasons.

Give an example of a relation which is symmetric and transitive but not reflexive.

Give an example of a relation which is symmetric but neither reflexive nor transitive.

Let R be a relation defined by R={(a, b): a >= b, a, b in RR} . The relation R is (a) reflexive, symmetric and transitive (b) reflexive, transitive but not symmetric (c) symmetric, transitive but not reflexive (d) neither transitive nor reflexive but symmetric

Let R be the relation on the set A={1,\ 2,\ 3,\ 4} given by R={(1,\ 2),\ (2,\ 2),\ (1,\ 1),\ (4,\ 4),\ (1,\ 3),\ (3,\ 3),\ (3,\ 2)} . Then, R is reflexive and symmetric but not transitive (b) R is reflexive and transitive but not symmetric (c) R is symmetric and transitive but not reflexive (d) R is an equivalence relation

Let R be the relation on the set A={1,\ 2,\ 3,\ 4} given by R={(1,\ 2),\ (2,\ 2),\ (1,\ 1),\ (4,\ 4),\ (1,\ 3),\ (3,\ 3),\ (3,\ 2)} . Then, R is (a) reflexive and symmetric but not transitive (b) R is reflexive and transitive but not symmetric (c) R is symmetric and transitive but not reflexive (d) R is an equivalence relation

Give an example of a relation which is reflexive and symmetric but not transitive.

Give an example of a relation which is reflexive and transitive but not symmetric.

Given the relation R={(1,2),(2,3)} on the set A={1,2,3}, add a minimum number of ordered pairs so that the enlarged relation is symmetric, transitive and reflexive.

Given the relation R={(1,2),(2,3) on the set A={1,2,3}, add a minimum number of ordered pairs so that the enlarged relation is symmetric, transitive and reflexive.

Given the relation R={(1,\ 2),\ (2,\ 3)} on the set A={1,\ 2,\ 3} , add a minimum number of ordered pairs so that the enlarged relation is symmetric, transitive and reflexive.