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On pose : \(f(x) = 1/(1+x)\), \(g(x) = e^{-x}\), \(h(x) = \sqrt{1-2\sin x}\), \(k(x) = \cos(\sqrt{2x})\).
Préciser les positions relatives de \(\mathcal{C}_f\), \(\mathcal{C}_g\), \(\mathcal{C}_h\), \(\mathcal{C}_k\) au voisinage de \(0\).
On pose : \(f(x) = 1/(1+x)\), \(g(x) = e^{-x}\), \(h(x) = \sqrt{1-2\sin x}\), \(k(x) = \cos(\sqrt{2x})\).
Préciser les positions relatives de \(\mathcal{C}_f\), \(\mathcal{C}_g\), \(\mathcal{C}_h\), \(\mathcal{C}_k\) au voisinage de \(0\).