\(समुच्चय (A={1,2,3,4}) पर (R={(a,b):a-b\) is even}) का संबंध किस आधार पर बनता है?
\(On (A={1,2,3,4}), the relation (R={(a,b):a-b\) is even}) is based on which idea?
Explanation opens after your attempt
A. समान paritySame parity
Concept
If (a-b) is even, then (a) and (b) have the same parity. In exams, make odd and even groups separately.
Why this answer is correct
The correct answer is A. समान parity / Same parity. If (a-b) is even, then (a) and (b) have the same parity. In exams, make odd and even groups separately.
Exam Tip
यदि (a-b) सम है, तो (a) और (b) दोनों समान parity के होते हैं। परीक्षा में odd और even समूह अलग बनाएं।
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