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oscar.plaisant@icloud.com
2024-01-07 19:26:57 +01:00
parent 7cfffa1dcd
commit 00dc433995
268 changed files with 81843 additions and 109871 deletions

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@@ -15,6 +15,6 @@ Somme d'une [[suite arithmétique]] de raison $r$
$\sum\limits_{k=0}^{n} k \times r = ?$
?
$r \dfrac{n(n+1)}{2}$
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