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Smades
@Smades
May 2019
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Bonjour pourriez-vous m’aider svp pour l’intégralité de l’exercice 2.
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no63
Salut
1) x appartient a [ 0 ; 4 ]
2) CE=DG=x
ED= 4-x
Aire= L*l
= x(4-x)
= 4x-x² = f(x)
3) f est croissante de [ 0 ; 2 ]
f est décroissante de [ 2 ; 4 ]
maximum atteint pour x=2
4) f(x)-4= -x²+4x-4
=> -(x-2)²= -x²+4x-4
-x+2=0
-x=-2 x=2
on retrouve la conjecture precedente
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Smades
June 2021 | 0 Respostas
Bonsoir, aidez-moi svp, merci. Cordialement Smades
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Bonsoir. Aidez moi svp c'est pour lundi, urgent !
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Aidez moi svp c'est pour lundi
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Lista de comentários
1) x appartient a [ 0 ; 4 ]
2) CE=DG=x
ED= 4-x
Aire= L*l
= x(4-x)
= 4x-x² = f(x)
3) f est croissante de [ 0 ; 2 ]
f est décroissante de [ 2 ; 4 ]
maximum atteint pour x=2
4) f(x)-4= -x²+4x-4
=> -(x-2)²= -x²+4x-4
-x+2=0
-x=-2 x=2
on retrouve la conjecture precedente