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TiDUS
@TiDUS
January 2021
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Aider moi à répondre à cette inéquation svp
(X+7)(X-8)(-X-9)(10-X)<0 ( inférieure ou égale à 0)
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MichaelS
Verified answer
Bonjour,
Tu as simplement à faire un tableau de signe :
x+7 = 0 ⇔ x = -7
x-8 = 0 ⇔ x=8
-x-9 = 0 ⇔ x = -9
10-x = 0 ⇔ x=10
S = ]-∞;-9]U[-7;8]U[10;+∞[
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TiDUS
Merci pour ton aide précieux
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Lista de comentários
Verified answer
Bonjour,Tu as simplement à faire un tableau de signe :
x+7 = 0 ⇔ x = -7
x-8 = 0 ⇔ x=8
-x-9 = 0 ⇔ x = -9
10-x = 0 ⇔ x=10
S = ]-∞;-9]U[-7;8]U[10;+∞[