Démonstration par l'absurde. √2= Racine de 2 est irrationnel. Seconde

Don't forget to subscribe to my YouTube channel. 😉 To access all the lessons in your class in PDF format, to a series of exercises with detailed corrections in videos and text, to quizzes to assess yourself, to supervised homework with detailed corrections, and also to support via WhatsApp, create an account on my website https://kiffelesmaths.com/ In this video, we will demonstrate that the number √2 = Root 2 is not a rational number. We will demonstrate that √2 = Root 2 is an irrational number. We will first review what a rational number is. We will then explain the principle of proof by contradiction. Finally, we will demonstrate by contradiction that √2 = Root 2 is not a rational number and that it is irrational. Complete playlist on number sets. 10th grade. 👉http://bit.ly/number_sets_10th_grade Video Chapters 0:00 Introduction 0:45 Definition of a Rational Number 01:22 Principle of Proof by Absurdity 03:11 Proof. √2 = Root of 2 is irrational. √2 = Root of 2 is not a rational number #lovemath #proof_by_absurdity #irrational_number