$R = \{(1, 2), (2, 3)\}$ is a relation on $A = \{1, 2, 3\}$ . What is the least number of pairs that must be added to $R$ to make it reflexive and transitive?

2

Correct answerYour answer

3

Correct answerYour answer

4

Correct answerYour answer

6

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Worth noting

3 adds only the pairs $(a, a)$ ; the chains still need their missing links.

Ten questions from Relations & Functions, at your own pace.

Ten questions from Relations & Functions, at your own pace.

R={(1,2),(2,3)}R = \{(1, 2), (2, 3)\}R={(1,2),(2,3)} is a relation on A={1,2,3}A = \{1, 2, 3\}A={1,2,3}. What is the least number of pairs that must be added to RRR to make it reflexive and transitive?