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@@ -7,7 +7,7 @@ derivative::$-\dfrac{1}{\sqrt{ x^{2} + 1 }} = \dfrac{1}{\sqrt{x^{2}-1}}$
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description::"$[1;+\infty[ \to \mathbb{R}^{+}$", "$x \mapsto \ln \left( x+\sqrt{x^{2}-1} \right)$"
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primitive::""
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title::$\arg \mathrm{ch}$
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#maths/analyse #maths/trigonométrie
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#s/maths/analyse #s/maths/trigonométrie
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----
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[[application réciproque]] du [[fonction cosinus hyperbolique|cosinus hyperbolique]]
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