यदि \(A=\{1,2,3,4,5\}\) और \(B=\{a,b,c,d,e,f\}\) हों, तो (A) से (B) में ऐसे कितने फलन हैं जिनमें पांचों छवियां अलग-अलग हों?
If \(A=\{1,2,3,4,5\}\) and \(B=\{a,b,c,d,e,f\}\), how many functions from (A) to (B) have all five images distinct?
Explanation opens after your attempt
C. (720)
Concept
The choices are (6,5,4,3,2) in order. Total functions are \(6\cdot5\cdot4\cdot3\cdot2=720\).
Why this answer is correct
The correct answer is C. (720). The choices are (6,5,4,3,2) in order. Total functions are \(6\cdot5\cdot4\cdot3\cdot2=720\).
Exam Tip
क्रम से (6,5,4,3,2) विकल्प मिलते हैं। कुल \(6\cdot5\cdot4\cdot3\cdot2=720\) फलन हैं।
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