\({}^{n}C_r\) के largest term को पहचानने के लिए कौन-सा relation सबसे उपयोगी है?
Which relation is most useful for identifying the largest term of \({}^{n}C_r\)?
Explanation opens after your attempt
Correct Answer
A. \(\frac{{}^{n}C_{r+1}}{{}^{n}C_r}=\frac{n-r}{r+1}\)
Concept
Near the largest term, the consecutive ratio changes around (1). In exams check the transition from increasing to decreasing.
Why this answer is correct
The correct answer is A. \(\frac{{}^{n}C_{r+1}}{{}^{n}C_r}=\frac{n-r}{r+1}\). Near the largest term, the consecutive ratio changes around (1). In exams check the transition from increasing to decreasing.
Exam Tip
Largest term के पास consecutive ratio (1) के आसपास बदलता है। परीक्षा में increasing और decreasing transition देखें।
Login to save your score, XP, coins and progress.