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1D2010
@1D2010
May 2019
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20 pts.....Bjr svp aider moi j'ai vraiment besoin de votre aide
Merci d'avance
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scoladan
Verified answer
Bonjour,
soit :
a, l'angle orienté (OA;OB)
l la longueur de l'arc AB
et R le rayon du cercle (C)
On a : l = a x 2π/360 x R
Soit a = 180xl/πxR
a= 180x12/5π = 432/π rad environ 137,51 rad
soit environ 44π - 0,72 rad ⇒ mesure principale environ -0,72 rad
b) a = -180x30/5π = -1080/π environ -343,77 rad
soit environ -110π + 1,8 rad ⇒ mesure principale environ 1,8 rad
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Salut tout le monde! !C vraiment trop urgent! !!Merci d'avance.
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Lista de comentários
Verified answer
Bonjour,soit :
a, l'angle orienté (OA;OB)
l la longueur de l'arc AB
et R le rayon du cercle (C)
On a : l = a x 2π/360 x R
Soit a = 180xl/πxR
a= 180x12/5π = 432/π rad environ 137,51 rad
soit environ 44π - 0,72 rad ⇒ mesure principale environ -0,72 rad
b) a = -180x30/5π = -1080/π environ -343,77 rad
soit environ -110π + 1,8 rad ⇒ mesure principale environ 1,8 rad