यदि \(R=\{(1,2),(2,1),(3,3)\}\) है, तो \(R^{-1}\) में कौन-सा युग्म अवश्य होगा?
If \(R=\{(1,2),(2,1),(3,3)\}\), which pair must be in \(R^{-1}\)?
Explanation opens after your attempt
Correct Answer
A. ((2,1))
Concept
Since \((1,2)\in R\), we have \((2,1)\in R^{-1}\). Every pair is reversed in the inverse relation.
Why this answer is correct
The correct answer is A. ((2,1)). Since \((1,2)\in R\), we have \((2,1)\in R^{-1}\). Every pair is reversed in the inverse relation.
Exam Tip
क्योंकि \((1,2)\in R\), इसलिए \((2,1)\in R^{-1}\)। प्रतिलोम में हर युग्म उलट जाता है।
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