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Prancer32
@Prancer32
May 2019
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Bonsoir à tous.
Je n'arrive pas à faire l'exercice n°45 quelqu'un peut m'aider ? Merci
( cosinus)
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Bonjour,
au college la trigo uniquement ds 1 triangle rectangle
1) on démontre que OMB rectangle en M (tu le fais)
2) cos60=OM/OB
0,5 = OM/80
OM = 80*0,5 = 40mm
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bonjour vous pouvez m'aider pour les exercices 37 et 39
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Verified answer
Bonjour,au college la trigo uniquement ds 1 triangle rectangle
1) on démontre que OMB rectangle en M (tu le fais)
2) cos60=OM/OB
0,5 = OM/80
OM = 80*0,5 = 40mm