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Fettahlin
@Fettahlin
May 2019
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L exercice 1 et 2 svp
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calinizou
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Bonsoir
applique la réciproque de pythagore
20²+21²=29²
400+441=841 réciproque prouvé donc l'étagère est bien horizontale
tu peux faire aussi 29²-21²=20²
841-441=400
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B est un nombre strictement positif. Comment fait on pour exprimer en fonction de b, l'aire des deux rectangles ci dessous. 1er rectangle 2eme rectangle Longueur: b+1 Longueur: 4 Largeur: b Largeur: b SVP aidez moi
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Verified answer
Bonsoirapplique la réciproque de pythagore
20²+21²=29²
400+441=841 réciproque prouvé donc l'étagère est bien horizontale
tu peux faire aussi 29²-21²=20²
841-441=400