यदि \(A=\{1,2\}\) और \(B=\{a,b\}\) हों, तो संबंध \(R=\{(1,a),(2,b)\}\) को (A) से (B) में फलन क्यों कहा जाएगा?
Explanation opens after your attempt
A. क्योंकि (A) के प्रत्येक तत्व की (B) में ठीक एक छवि हैBecause every element of (A) has exactly one image in (B)
Concept
Each element (1) and (2) of (A) has exactly one image in (B). In exams, first count the image of every domain element to test a function.
Why this answer is correct
The correct answer is A. क्योंकि (A) के प्रत्येक तत्व की (B) में ठीक एक छवि है / Because every element of (A) has exactly one image in (B). Each element (1) and (2) of (A) has exactly one image in (B). In exams, first count the image of every domain element to test a function.
Exam Tip
प्रत्येक (A) के तत्व (1) और (2) की (B) में ठीक एक-एक छवि है। परीक्षा में फलन जांचते समय पहले डोमेन के हर तत्व की छवि गिनें।
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