Class 11 Mathematics Relations and Functions Relations Easy Level 26

यदि \(A=\{1,2,3\}\) और \(R=\{(1,1),(2,2)\}\) है, तो (R) reflexive क्यों नहीं है?

If \(A=\{1,2,3\}\) and \(R=\{(1,1),(2,2)\}\), why is (R) not reflexive?

Explanation opens after your attempt
Correct Answer

C. क्योंकि ( (3,3) ) नहीं हैbecause ( (3,3) ) is absent

Step 1

Concept

For reflexive relation, ( (3,3) ) must also be present. If one diagonal pair is missing, the relation is not reflexive.

Step 2

Why this answer is correct

The correct answer is C. क्योंकि ( (3,3) ) नहीं है / because ( (3,3) ) is absent. For reflexive relation, ( (3,3) ) must also be present. If one diagonal pair is missing, the relation is not reflexive.

Step 3

Exam Tip

Reflexive होने के लिए ( (3,3) ) भी होना चाहिए। एक diagonal pair missing हो तो relation reflexive नहीं होता।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3\}\) और \(R=\{(1,1),(2,2)\}\) है, तो (R) reflexive क्यों नहीं है? / If \(A=\{1,2,3\}\) and \(R=\{(1,1),(2,2)\}\), why is (R) not reflexive?

Correct Answer: C. क्योंकि ( (3,3) ) नहीं है / because ( (3,3) ) is absent. Explanation: Reflexive होने के लिए ( (3,3) ) भी होना चाहिए। एक diagonal pair missing हो तो relation reflexive नहीं होता। / For reflexive relation, ( (3,3) ) must also be present. If one diagonal pair is missing, the relation is not reflexive.

Which concept should I revise for this Mathematics MCQ?

For reflexive relation, ( (3,3) ) must also be present. If one diagonal pair is missing, the relation is not reflexive.

What exam hint can help solve this Mathematics question?

Reflexive होने के लिए ( (3,3) ) भी होना चाहिए। एक diagonal pair missing हो तो relation reflexive नहीं होता।