User:Tefal

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Revision as of 15:24, 26 July 2023 by Etg bastien (talk | contribs)
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\ln(\frac{\pi}{2})= \int\limits_{0}^{1} \int\limits_{0}^{1} \frac{t^x}{t+1} \diff x \, \, \mathrm{d}t -Etg bastien