AIDEZ moi svp vous gagnez 13 points.... Pergunta de ideia deelaakar19

elaakar19 @elaakar19

December 2020 1 71 Report

AIDEZ moi svp vous gagnez 13 points

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Skabetix

Bonjour,

$\frac{1}{n + 1} - \frac{1}{n}$

$= \frac{n}{n(n + 1)} - \frac{(n + 1)}{n(n + 1)}$

$= \frac{n - (n + 1)}{n(n + 1)}$

$= \frac{n - n - 1}{n(n + 1)}$

$= \frac{ - 1}{n(n + 1)}$

1 votes Thanks 1

elaakar19 MERCII

Skabetix Avec plaisir :)

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