\(यदि (R={(x,y):x+y\) सम है}) है, तो कौन-सा pair (R) में है?
\(If (R={(x,y):x+y\) is even}), which pair is in (R)?
Explanation opens after your attempt
Correct Answer
C. ( (3,7) )
Concept
Since (3+7=10) is even, \((3,7)\in R\). Always check the parity of the sum.
Why this answer is correct
The correct answer is C. ( (3,7) ). Since (3+7=10) is even, \((3,7)\in R\). Always check the parity of the sum.
Exam Tip
(3+7=10) सम है, इसलिए \((3,7)\in R\) है। sum की parity जरूर जांचें।
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