Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Need clarity, kindly explain! Which of the following relation is an identity relation in set A = {1,2,3}

Which of the following relation is an identity relation in set A = {1,2,3}

  • Option 1)

    \left \{ (1,1);(1,2);(1,3); (2,2);(3,3)\right \}

  • Option 2)

    \left \{ (1,1);(2,2);(3,3);(2,3)\right \}

  • Option 3)

    \left \{ (1,1);(2,2);(3,3)\right \}

  • Option 4)

    All of the above.

 

Answers (1)

best_answer

As we have learnt,

 

Identity Relation -

If every element of A is related to itself only.

- wherein

I_{A}=\{ (A,A):a\epsilon A\}

 

 Only (C) is an identity relation, Since (1,1), (2,2) and (3,3) are present.

 


Option 1)

\left \{ (1,1);(1,2);(1,3); (2,2);(3,3)\right \}

Option 2)

\left \{ (1,1);(2,2);(3,3);(2,3)\right \}

Option 3)

\left \{ (1,1);(2,2);(3,3)\right \}

Option 4)

All of the above.

Posted by

Himanshu

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2026: NTA reopens Session 2 registration; apply by March 13 at jeemain.nta.nic.in
anam-khan

JEE Mains 2026 LIVE: NTA session 2 registration last day, city slip soon; here's how to prepare
anam-khan

JEE Main 2026 session 2 application correction begins on jeemain.nta.nic.in; edit details by tomorrow

Latest Question