Ratio of Consecutive Binomial Coefficients | JEE 2027 Maths (English)

Free notes + solved JEE problems for this lesson: https://rankdeterminant.com/go/yt-mat... All lessons of this unit:    • JEE 2027 Maths | Unit 5 Binomial Theorem   How to find n and r when three consecutive binomial coefficients are in a given ratio: decide which coefficients the question means, use the ratio of neighbours to get two equations, multiply by k for (1 + kx)^n, the A.P. condition (n - 2r)^2 = n + 2, why they are never in G.P. or H.P., and two solved JEE-style problems. Chapters 0:00 Introduction 0:32 First decide: which three coefficients? 1:50 Ratio of neighbours: two equations 3:06 Progressions: A.P. possible, G.P. and H.P. never 4:36 Example 1: coefficients in ratio 1:2:3, find n and r 6:13 Example 2: (1 + 3x)^n coefficients in ratio 1:8:42 7:51 Quick revision: ratio equations, A.P. test, never G.P. A free JEE paper every day and a full JEE Main mock every Sunday: https://rankdeterminant.com/go/yt-dai... Mathematics · Unit 5 · Binomial Theorem · Chapter 3 · Coefficients: Conditions and Products #BinomialCoefficients #JEEMaths #JEE2027 Narrated with a computer voice.