यदि (R) संबंध \(A=\{1,2,3,4\}\) पर (aRb) तभी हो जब (a-b) सम संख्या हो तो (R) में कौन सा युग्म होगा?
If (R) is a relation on \(A=\{1,2,3,4\}\) where (aRb) only when (a-b) is even, which pair belongs to (R)?
Explanation opens after your attempt
C. \((1,3)\)
Concept
Since (1-3=-2) is even, \((1,3)\in R\). In parity questions, check the parity of the difference.
Why this answer is correct
The correct answer is C. \((1,3)\). Since (1-3=-2) is even, \((1,3)\in R\). In parity questions, check the parity of the difference.
Exam Tip
(1-3=-2) सम है इसलिए \((1,3)\in R\) है। समता वाले प्रश्नों में अंतर की parity जांचें।
Login to save your score, XP, coins and progress.
