AP Sum and AM-GM Minimum Value Problems | 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 6 Sequences and Series   Two quick tools for JEE Main sequences and series questions: the A.P. formulas for the nth term and the sum of n terms, and A.M. ≥ G.M. for the least value of a sum of positive terms. Then two solved problems: S20 when the 5th term is 16 and the 12th is 37 (answer 650), and the least value of 2x + 8/x² for x 0 (answer 6), with the split-the-term trick. Chapters 0:00 Introduction 0:38 Set 1: what is inside 1:06 Tool 1: the A.P. formulas 2:07 Tool 2: A.M. ≥ G.M. for a least value 3:17 Example 1: S20 of an AP with 5th term 16, 12th term 37 4:51 Example 2: least value of 2x + 8/x^2 for positive x 6:50 Quick revision: AP formulas and splitting terms for AM-GM A free JEE paper every day and a full JEE Main mock every Sunday: https://rankdeterminant.com/go/yt-dai... Mathematics · Unit 6 · Sequences & Series · Chapter 5 · Mixed JEE Main-Pattern Problems #SequencesAndSeries #JEEMaths #JEE2027 Narrated with a computer voice.