यदि (n=10) और (r=4) हो तो \(^{n}P_r\) का last factor (n-r+1) कितना होगा?
If (n=10) and (r=4) what is the last factor (n-r+1) of \(^{n}P_r\)?
Explanation opens after your attempt
C. (7)
Concept
(10-4+1=7). In exams do not forget (+1) while finding the last factor.
Why this answer is correct
The correct answer is C. (7). (10-4+1=7). In exams do not forget (+1) while finding the last factor.
Exam Tip
(10-4+1=7) होता है। परीक्षा में last factor निकालते समय (+1) भूलें नहीं।
Login to save your score, XP, coins and progress.
