यदि \(A=\{1,2,3\}\) और संबंध में केवल ((1,2)) तथा ((2,3)) हैं तो यह (A) से फलन क्यों नहीं है?
If \(A=\{1,2,3\}\) and the relation contains only ((1,2)) and ((2,3)), why is it not a function from (A)?
Explanation opens after your attempt
A. क्योंकि (3) का कोई प्रतिबिंब नहीं हैBecause (3) has no image
Concept
Every element of the domain (A) must have an image. Here (3) is missing.
Why this answer is correct
The correct answer is A. क्योंकि (3) का कोई प्रतिबिंब नहीं है / Because (3) has no image. Every element of the domain (A) must have an image. Here (3) is missing.
Exam Tip
प्रांत (A) के हर तत्व का प्रतिबिंब होना चाहिए। यहां (3) छूट गया है।
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