यदि किसी संबंध (R) में \((2,5)\in R\) है और (R) सममित है, तो कौन सा युग्म अवश्य होगा?
If \((2,5)\in R\) and (R) is symmetric, which pair must be present?
Explanation opens after your attempt
Correct Answer
A. ((5,2))
Concept
In a symmetric relation, \((a,b)\in R\Rightarrow(b,a)\in R\). Therefore ((5,2)) must be present.
Why this answer is correct
The correct answer is A. ((5,2)). In a symmetric relation, \((a,b)\in R\Rightarrow(b,a)\in R\). Therefore ((5,2)) must be present.
Exam Tip
सममित संबंध में \((a,b)\in R\Rightarrow(b,a)\in R\) होता है। इसलिए ((5,2)) अवश्य होगा।
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