यदि \(A=\{1,2\}\) और \(B=\{a,b,c\}\) हों, तो (A) से (B) में कुल फलनों की संख्या कितनी है?
If \(A=\{1,2\}\) and \(B=\{a,b,c\}\), how many functions are there from (A) to (B)?
Explanation opens after your attempt
B. \(3^2=9\)
Concept
For (2) domain elements, there are (3) codomain choices each, so total functions are \(3^2=9\). In exams, keep the counts of functions and relations separate.
Why this answer is correct
The correct answer is B. \(3^2=9\). For (2) domain elements, there are (3) codomain choices each, so total functions are \(3^2=9\). In exams, keep the counts of functions and relations separate.
Exam Tip
प्रांत के (2) तत्वों के लिए सहप्रांत की (3) पसंद हैं, इसलिए कुल \(3^2=9\) फलन हैं। परीक्षा में फलन और संबंध की संख्या अलग रखें।
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