यदि \(A=\{2,4,6\}\) और \(B=\{1,3,5\}\) हों, तो \(R=\{(2,1),(4,3)\}\) फलन क्यों नहीं है?
If \(A=\{2,4,6\}\) and \(B=\{1,3,5\}\), why is \(R=\{(2,1),(4,3)\}\) not a function?
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Correct Answer
A. क्योंकि (6) की कोई छवि नहीं हैBecause (6) has no image
Concept
For a function, every element of (A) must have exactly one image. In exams, identify a missing domain element quickly.
Why this answer is correct
The correct answer is A. क्योंकि (6) की कोई छवि नहीं है / Because (6) has no image. For a function, every element of (A) must have exactly one image. In exams, identify a missing domain element quickly.
Exam Tip
फलन के लिए (A) के हर तत्व की ठीक एक छवि होनी चाहिए। परीक्षा में छूटा हुआ प्रांत तत्व तुरंत पहचानें।
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