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cl4ris
@cl4ris
June 2021
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pour demain c'est noté! aidez moi!!
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bernardditbidou
La surface est EH*EF=400
si on pose EH=X alors EF*X=400 d'ou EF=400/X
On peut dire ensuite que la surface de la piscine est:
(EF-4)*(EH-4) ou (EF-4)*(X-4)
soit puisque EF=400/X
A=(400/X-4)(X-4)
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bernardditbidou
je te laisse finir les calculs "fastidieux" mais qui ne présentent pas de difficultés
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Lista de comentários
si on pose EH=X alors EF*X=400 d'ou EF=400/X
On peut dire ensuite que la surface de la piscine est:
(EF-4)*(EH-4) ou (EF-4)*(X-4)
soit puisque EF=400/X
A=(400/X-4)(X-4)