यदि \(A=\{1,2,3\}\) और \(B=\{a,b,c,d\}\) हों तो (A) से (B) में ऐसे कितने फलन हैं जिनमें (f(1),f(2),f(3)) सभी अलग हों?
If \(A=\{1,2,3\}\) and \(B=\{a,b,c,d\}\), how many functions from (A) to (B) have (f(1),f(2),f(3)) all distinct?
Explanation opens after your attempt
B. (24)
Concept
There are (4) choices for the first input, (3) for the second, and (2) for the third. Total is \(4\cdot3\cdot2=24\).
Why this answer is correct
The correct answer is B. (24). There are (4) choices for the first input, (3) for the second, and (2) for the third. Total is \(4\cdot3\cdot2=24\).
Exam Tip
पहले इनपुट के लिए (4), दूसरे के लिए (3), तीसरे के लिए (2) विकल्प हैं। कुल \(4\cdot3\cdot2=24\) हैं।
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