\(यदि (A={1,2,3,4}) और (R={(a,b):ab\) is even}) है, तो सही कथन कौन सा है?
\(If (A={1,2,3,4}) and (R={(a,b):ab\) is even}), which statement is correct?
Explanation opens after your attempt
Correct Answer
A. सममित लेकिन स्वतुल्य नहींSymmetric but not reflexive
Concept
Since (ab=ba), it is symmetric. But ((1,1)) is not included because \(1\cdot1\) is not even.
Why this answer is correct
The correct answer is A. सममित लेकिन स्वतुल्य नहीं / Symmetric but not reflexive. Since (ab=ba), it is symmetric. But ((1,1)) is not included because \(1\cdot1\) is not even.
Exam Tip
(ab=ba), इसलिए सममित है। लेकिन ((1,1)) शामिल नहीं है क्योंकि \(1\cdot1\) सम नहीं है।
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