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Essai de sujet
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3 years 5 months ago - 3 years 4 months ago #3
by Anonymes
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Un message nouveau : une formule de mathématiques :
$\displaystyle \sum_{k=1}^{+\infty} \dfrac 1 {k^2} = \dfrac {\pi ^2} 6$
{up lorem=2} $\displaystyle \sum_{k=1}^{+\infty} \dfrac 1 {k^2} = \dfrac {\pi ^2} 6$
Last edit: 3 years 4 months ago by cinefou.
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