Franklin Barrett
09/22/2023 · Middle School
3- Résoudre dans \( \mathbb{R} \), l'équation \( P(x)=0 \) 4- Etudier suivant les valeurs de \( x \), le signe de \( P(x) \). 5- En déduire le signe de \( P\left(\frac{\pi}{\sqrt{2}}\right) \) 6 - Résoudre dans \( \mathbb{R} \), l'inéquation \( P(x) \leq 0 \) 7- On pose \( F(x)=\frac{-3 x^{2}+6 x-2}{x+5} \) a) Donner la condition d'existence de \( F(x) \). b) Déterminer les réels a, bet c tels que \( F(x)=a x+b+\frac{c}{x+5} \)
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Pour résoudre les questions posées, il est nécessaire de fournir l'expression de \( P(x) \). La condition d'existence de \( F(x) \) est \( x \neq -5 \), et pour \( F(x) = a x + b + \frac{c}{x+5} \), \( a = -3 \), \( b = 21 \), \( c = -107 \).
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