Solution D'exercice sur la Logique | raisonnement par l'absurde | logique et raisonnement

I present to you an essential exercise for understanding #proof_by_absurdity, four questions through which I place you in different application scenarios. The solution to Question 3 is here:    • Solution D'exercice sur la Logique | raiso...   The solution to Question 4 is here:    • Solution D'exercice sur la Logique | raiso...   Personal Website: https://maths-exams.com *********************************************************************** Contact Email: [email protected] Application to submit your exercises for solving: https://exe.io/ExerciceResolver My PayPal account: https://paypal.me/ennaouriMohammed ************************************************************************** Classic Exercise on Sequences (recursive and arithmetic sequences) 1st year of high school:    • Exercice classique sur les Suites :(suite ...   Exercise with Solution: Formulas Trigonometrics + Equations + Inequalities:    • Exercice Corrigé : Formules Trigonométriqu...   Trigonometry Exercise: Finding the Principal Curvilinear Abscissa of a Point (two methods):    • Exercice sur la trigonométrie : Trouver l'...   ************************************************************************** Subscribe:    / @lowdiscovery   00:00 - Solution Q1: Reasoning by Contraposition - 04:12 - Solution Q2 Part 1: √3 is not rational (by contradiction) - 12:00 - Solution Q2 Part 2: √5 - √3 is not rational (by contradiction) - 14:43 - Solution Q3: √(n² + 7n + 12) is not a natural number - 20:10 - Solution Q4: cos(x)sin(x) differ by 1 -