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ZekiaChin
@ZekiaChin
April 2019
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Bonjour , j'ai un devoir sur le cosinus. Je connais la formule, mais je ne sais pas comment m'y prendre pour cet exercice. (22)
Exercice de 4 eme , voir pièce jointe ci-dessous.
Merci bien.
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slyz007
Verified answer
A) CosFEG=GE/FE donc FE=GE/Cos22,5=200/Cos22,5≈216,4 m
b) TanFEG=GF/GE donc GF=GE*tan22,5=200*tan22,5≈82,8m
1 votes
Thanks 1
ZekiaChin
Merci. :)
Commentaires (1)
Bonjour,
1-
CosFEG = GE/Cos22,5 = 200/Cos22,5 ≈
216,4 m
2-
TanFEG =GE X tan22,5 = 200 X tan22,5 ≈
82,8 m
Si tu as des questions, n'hésite pas! =)
1 votes
Thanks 1
ZekiaChin
Merci à toi. :)
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Bonjour , devoir sur les pourcentages en maths 1ere. Aidez moi je vous en pris ! Merci d'avance.
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Verified answer
A) CosFEG=GE/FE donc FE=GE/Cos22,5=200/Cos22,5≈216,4 mb) TanFEG=GF/GE donc GF=GE*tan22,5=200*tan22,5≈82,8m
1-
CosFEG = GE/Cos22,5 = 200/Cos22,5 ≈ 216,4 m
2-
TanFEG =GE X tan22,5 = 200 X tan22,5 ≈ 82,8 m
Si tu as des questions, n'hésite pas! =)