यदि \(A=\{a,b,c\}\) और \(B=\{1,2\}\) हों, तो (A) से (B) में कुल फलनों की संख्या कितनी है?
If \(A=\{a,b,c\}\) and \(B=\{1,2\}\), how many functions are there from (A) to (B)?
Explanation opens after your attempt
Correct Answer
A. \(2^3=8\)
Concept
Each element of (A) has (2) choices in (B), so total functions are \(2^3=8\). In exams, use (n(B)^{n(A)}).
Why this answer is correct
The correct answer is A. \(2^3=8\). Each element of (A) has (2) choices in (B), so total functions are \(2^3=8\). In exams, use (n(B)^{n(A)}).
Exam Tip
हर (A) के तत्व के लिए (B) की (2) पसंद हैं, इसलिए कुल \(2^3=8\) फलन हैं। परीक्षा में सूत्र (n(B)^{n(A)}) लगाएं।
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