यदि \(A=\{1,2,3,4\}\) और \(B=\{a,b,c,d\}\) हों, तो कौन-सा संबंध फलन नहीं है?
If \(A=\{1,2,3,4\}\) and \(B=\{a,b,c,d\}\), which relation is not a function?
Explanation opens after your attempt
Correct Answer
D. ({(1,a),(2,b),(3,c),(3,d)})
Concept
In option (D), (3) has two images (c) and (d), and (4) has no image. In exams, check both conditions.
Why this answer is correct
The correct answer is D. ({(1,a),(2,b),(3,c),(3,d)}). In option (D), (3) has two images (c) and (d), and (4) has no image. In exams, check both conditions.
Exam Tip
विकल्प (D) में (3) की दो छवियां (c) और (d) हैं तथा (4) की छवि नहीं है। परीक्षा में दोनों शर्तें जांचें।
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