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Oscar Plaisant
2024-12-25 22:30:24 +01:00
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2098 changed files with 11681 additions and 2271 deletions

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@@ -1,6 +1,6 @@
up:: [[suite géométrique]]
title:: "$\sum\limits_{k=0}^{n} q^{k} = \dfrac{1-q^{k}}{1-q}$"
#maths/analyse #maths/arithmétique
#s/maths/analyse #s/maths/arithmétique
$\displaystyle\sum\limits_{k= p}^{N} x^{k} = \frac{x^{p} - x^{N+1}}{1 - x} = \frac{(\text{premier terme}) - (\text{premier terme pas pris})}{1-x}$