Daniel Dawson
06/30/2024 · Senior High School

EXERCICE 2 Soit la suite \( \left(U_{n}\right)_{n \in N^{*}} \) défin \( U_{n+1}=\frac{6+U_{n}}{2+U_{n}} \). 1. Montrer par récurrence qu (Pour n non nul, \( U_{n}>0 \) ) 2. On considère la suite \( \left(V_{n}\right)_{r} \) (a) Montrer que \( \left(V_{n}\right) \) est terme ettla raison. (b) Donner l'expression de (c) Calculer \( \lim _{n \rightarrow+\infty} V_{n} \) et

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1. Montrer par récurrence que \( U_n > 0 \) pour tout \( n \in \mathbb{N}^* \). 2. Étude de la suite \( \left(V_n\right)_{n \in \mathbb{N}^*} \): (a) Montrer que \( \left(V_n\right) \) est une suite terminée. (b) Donner l'expression de \( V_n \). (c) Calculer \( \lim _{n \rightarrow+\infty} V_{n} \).

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