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User:Akirali

Revision as of 17:18, 29 August 2014 by Akirali (talk | contribs) (Exercice n°1 (suite réelle & valeur absolue) (AKIR ALI))
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Exercice n°1 (suite réelle & valeur absolue)

Exprimer $U_{n}$ en fonction de n, sachant que : $U_{n+1}$=$|U_{n}|$- ($1/2$)$U_{n}$ et $U_{0}$ est un réel non nul.

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