यदि \(A=\{r,s,t\}\) और \(B=\{0,1,2,3\}\) हों, तो (A) से (B) में कुल फलनों की संख्या क्या है?
If \(A=\{r,s,t\}\) and \(B=\{0,1,2,3\}\), what is the total number of functions from (A) to (B)?
Explanation opens after your attempt
Correct Answer
B. \(4^3=64\)
Concept
Each domain element has (4) choices in (B), so total functions are \(4^3=64\). In exams, use (n(B)^{n(A)}).
Why this answer is correct
The correct answer is B. \(4^3=64\). Each domain element has (4) choices in (B), so total functions are \(4^3=64\). In exams, use (n(B)^{n(A)}).
Exam Tip
हर प्रांत तत्व के लिए (B) की (4) पसंद हैं इसलिए कुल \(4^3=64\) फलन हैं। परीक्षा में सूत्र (n(B)^{n(A)}) लगाएं।
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