Calculer le sinus, le cosinus ou la tangente d'un angle d'un triangle rectangle (leçon) | Khan Academy
![SOLVED:Rewrite the expression as the sine cosine O1 tangent of a double- = angle Ther COs 2(120") - sin 2(120?) Use the appropriate double-angle formula to rewrite the given expression as cos SOLVED:Rewrite the expression as the sine cosine O1 tangent of a double- = angle Ther COs 2(120") - sin 2(120?) Use the appropriate double-angle formula to rewrite the given expression as cos](https://cdn.numerade.com/ask_images/dde9db368c1b4404a21ab83ff5c579ee.jpg)
SOLVED:Rewrite the expression as the sine cosine O1 tangent of a double- = angle Ther COs 2(120") - sin 2(120?) Use the appropriate double-angle formula to rewrite the given expression as cos
![Trigonométrie dans un triangle rectangle (application du cosinus). Calculer l'hypoténuse connaissant le côté adjacent d'un angle donné Trigonométrie dans un triangle rectangle (application du cosinus). Calculer l'hypoténuse connaissant le côté adjacent d'un angle donné](https://www.editions-petiteelisabeth.fr/images/calculs/1_hypotenuse_cosinus.png?1466435901)