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Iness16
@Iness16
January 2021
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Boujour pourrait vous m aider pour là question b car je ne voit pas comment trouver l’endroit résultat svp merci d avance
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scoladan
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Bonjour,
u et v colinéaires
⇔ u = k x v avec k un réel quelconque à déterminer
⇒ 2 = k(1 + x)
et 3 = k(2x)
⇒ k = 3/2x
et 2 = 3(1 + x)/2x
⇔ k = 3/2x
et 4x = 3 + 3x
⇔ x = 3
et k = 3/6 = 1/2
⇒ v(1 + 3; 2x3) soit v(4:6)
et u = 1/2 x v
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Lista de comentários
Verified answer
Bonjour,u et v colinéaires
⇔ u = k x v avec k un réel quelconque à déterminer
⇒ 2 = k(1 + x)
et 3 = k(2x)
⇒ k = 3/2x
et 2 = 3(1 + x)/2x
⇔ k = 3/2x
et 4x = 3 + 3x
⇔ x = 3
et k = 3/6 = 1/2
⇒ v(1 + 3; 2x3) soit v(4:6)
et u = 1/2 x v