यदि (R) और (S) सममित संबंध हैं, तो \(R\cup S\) के बारे में कौन सा कथन हमेशा सत्य है?
If (R) and (S) are symmetric relations, which statement is always true about \(R\cup S\)?
Explanation opens after your attempt
Correct Answer
A. \(R\cup S\) सममित है\(R\cup S\) is symmetric
Concept
The reverse of every pair is present in the same relation, so it is also present in the union. Symmetry is preserved under union.
Why this answer is correct
The correct answer is A. \(R\cup S\) सममित है / \(R\cup S\) is symmetric. The reverse of every pair is present in the same relation, so it is also present in the union. Symmetry is preserved under union.
Exam Tip
किसी भी युग्म के साथ उसका उल्टा उसी संबंध में होगा, इसलिए संघ में भी होगा। सममिति संघ में सुरक्षित रहती है।
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