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Formules trigonometriques 2s

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Hassanmouh

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Univercite Libanaise Faculte de pedagogie CAPES-2018/2019
Lycee officiel Kobayat
Nom du formateur: Nahi Haj.
Nom du stagiaire: Hassan Abas.
Classe : 2S.
Nombre d’eleves : 16.
Date et jour : lundi 10/12/2018.
Periode : 7eme. Duree : 50 min.
Chapitre 13 : Formules trigonometrique-page 161.
Objectif du chapitre
Connaitre et utilser les formules trigonometriques fondamentales.(1min)
Prerequis(evaluation diagnostique). (1min)
• Cerles et lignes trigonometriques.
• Produit scalaires dans le plan.
• Repere orthonorme direct.
Motivation: Applications pratiques.
• 𝑈 = 𝑈 𝑚𝑎𝑥 sin 𝑤𝑡 + ∅ : c’est la formule de la tension alternative sinusoidale.
• 𝐸. 𝑃𝑝 = 𝑚𝑔𝑎 1 − cos 𝛼 + 𝛽 .
• Un eleve interessant gagne deux points, tandis qu’un autre negligeant perd un point.
(1min).
• Une video. (4min).
Formules trigonometriques 2s
x
Objectif de l’activite.
Etablir la formule trigonometrique fondamentale d’addition.

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Formules trigonometriques 2s