यदि \(A=\{1,2,3,4,5\}\), \(B=\{1,2,3,4,5\}\) और \(R=\{(a,b):a+b=7\}\) है, तो \(R^{-1}\) में कौन सा युग्म अवश्य होगा?
If \(A=\{1,2,3,4,5\}\), \(B=\{1,2,3,4,5\}\), and \(R=\{(a,b):a+b=7\}\), which pair must be in \(R^{-1}\)?
Explanation opens after your attempt
Correct Answer
C. ((5,2))
Concept
Since \((2,5)\in R\), we have \((5,2)\in R^{-1}\). In an inverse relation, the order reverses.
Why this answer is correct
The correct answer is C. ((5,2)). Since \((2,5)\in R\), we have \((5,2)\in R^{-1}\). In an inverse relation, the order reverses.
Exam Tip
क्योंकि \((2,5)\in R\), इसलिए \((5,2)\in R^{-1}\)। प्रतिलोम संबंध में क्रम उलटता है।
Login to save your score, XP, coins and progress.