Attack on functions (IMO 2017 P2)

#IMO​ #FunctionalEquations​ #MathOlympiad​ In this video we solve our first IMO problem 2 functional equation, which is considered to be hard and we show an epic injectivity battle that enables us to solve the problem!!.. Chapters: 0:00 Introduction 1:43 First step 11:21 Discovering the mistake 16:46 Second Case 23:40 Assuming Injectivity 32:55 Proving injectivity 49:44 Summing Up Functional Equations playlist: https://youtube.com/playlist?list=PL1qInO9wTp3lh0uGN9W6JufoBk7g0BDCL __________________________________________________________________________________________ I upload videos concerning math Olympiad contests to help students preparing for math Olympiad and all people who share the love for some interesting math problems. Don't forget to subscribe to the channel! __________________________________________________________________________________________ Email me your thoughts! ([email protected]) Donate: https://www.paypal.com/paypalme/hommeida?locale.x=en_US