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Soit \(\phi :\Nn\rightarrow \Nn\) bijective, telle que \(\lim\limits_{n\rightarrow \infty }\frac{\phi (n)}{n}=\ell.\) Calculer \(\ell\).
Soit \(\phi :\Nn\rightarrow \Nn\) bijective, telle que \(\lim\limits_{n\rightarrow \infty }\frac{\phi (n)}{n}=\ell.\) Calculer \(\ell\).