यदि \(R=\{(1,2),(2,1)\}\) समुच्चय \(A=\{1,2\}\) पर है, तो कौन सा कथन सही है?
If \(R=\{(1,2),(2,1)\}\) is on \(A=\{1,2\}\), which statement is correct?
Explanation opens after your attempt
Correct Answer
A. यह सममित है लेकिन प्रतिवर्ती नहींIt is symmetric but not reflexive
Concept
Both ((1,2)) and ((2,1)) are present, so it is symmetric. But ((1,1)) and ((2,2)) are absent, so it is not reflexive.
Why this answer is correct
The correct answer is A. यह सममित है लेकिन प्रतिवर्ती नहीं / It is symmetric but not reflexive. Both ((1,2)) and ((2,1)) are present, so it is symmetric. But ((1,1)) and ((2,2)) are absent, so it is not reflexive.
Exam Tip
((1,2)) और ((2,1)) दोनों हैं, इसलिए सममित है। लेकिन ((1,1)) और ((2,2)) नहीं हैं, इसलिए प्रतिवर्ती नहीं है।
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