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tatavivi79
@tatavivi79
June 2021
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devoir maison pour mardi merci de votre aide
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em237972
Ex 1 :
cos 50° = 2/AT ⇒ AT = 2/cos 50° ⇒ AT ≈ 3,11 cm.
Ex 2 : revoir les leçons.
Ex 3 :
D'après Thalès, R'R / H'H = OR / RH (45 - 6) ⇒ 2 / H'H = 6 / 39 ⇒ H'H = 78 / 6 = 13 m.
Ex 4 :
EF² = ED² + DF² ⇒ EF² = 4,2² + 5,6² ⇒ EF² = 17,64 + 31,36 ⇒ EF² = 49 ⇒ EF = √49 = 7 cm.
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pouvez vous m'aider en anglais merci pour la question 2 et 3
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exercices anglais et je suis nul en anglais merci m'aider
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exercices de math un grand merci
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pour demain svp merci de votre gentillesse
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Lista de comentários
cos 50° = 2/AT ⇒ AT = 2/cos 50° ⇒ AT ≈ 3,11 cm.
Ex 2 : revoir les leçons.
Ex 3 :
D'après Thalès, R'R / H'H = OR / RH (45 - 6) ⇒ 2 / H'H = 6 / 39 ⇒ H'H = 78 / 6 = 13 m.
Ex 4 :
EF² = ED² + DF² ⇒ EF² = 4,2² + 5,6² ⇒ EF² = 17,64 + 31,36 ⇒ EF² = 49 ⇒ EF = √49 = 7 cm.