यदि \(A=\{1,2,3,4\}\) और \(R={(a,b):a\) and (b) have same parity(}) है, तो कौन-सा pair (R) में है?
If \(A=\{1,2,3,4\}\) and \(R={(a,b):a\) and (b) have same parity(}), which pair is in (R)?
Explanation opens after your attempt
Correct Answer
C. ( (1,3) )
Concept
Both (1) and (3) are odd, so they have the same parity. In a parity relation, even-even or odd-odd pairs are correct.
Why this answer is correct
The correct answer is C. ( (1,3) ). Both (1) and (3) are odd, so they have the same parity. In a parity relation, even-even or odd-odd pairs are correct.
Exam Tip
(1) और (3) दोनों विषम हैं, इसलिए same parity है। parity relation में सम-सम या विषम-विषम pair सही होता है।
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