यदि \(R=\{(1,1),(2,2)\}\) है, तो (R) symmetric क्यों है?
If \(R=\{(1,1),(2,2)\}\), why is (R) symmetric?
Explanation opens after your attempt
Correct Answer
A. हर pair अपना reverse खुद हैeach pair is its own reverse
Concept
The reverse of a diagonal pair ( (a,a) ) is the same pair ( (a,a) ). Hence a relation with only diagonal pairs is symmetric.
Why this answer is correct
The correct answer is A. हर pair अपना reverse खुद है / each pair is its own reverse. The reverse of a diagonal pair ( (a,a) ) is the same pair ( (a,a) ). Hence a relation with only diagonal pairs is symmetric.
Exam Tip
Diagonal pair ( (a,a) ) का reverse भी ( (a,a) ) ही होता है। इसलिए केवल diagonal pairs वाला relation symmetric है।
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