Commit a4b3f3fc authored by Claude Meny's avatar Claude Meny

Update cheatsheet.fr.md

parent c3725da7
Pipeline #14640 canceled with stage
......@@ -95,11 +95,13 @@ RÉSUMÉ<br>
&\Longrightarrow\quad \Large{N(t_2)=N(t_1)\;e^{\,r\,(t_2-t_1)}}
\end{align}`$
<br>
<br>
$`\Large{\left.\dfrac{dN}{dt}\right\lvert_{\,\bigt} = r\,N(t)}&\quad \Longrightarrow\quad\left.\dfrac{dN}{N}\right\lvert_{\,\bigt}=r\,dt`$
$`\displaystyle\begin{align}
\Large{\left.\dfrac{dN}{dt}\right\lvert_{\,\bigt} & =r\,N(t)}\quad \Longrightarrow\quad\left.\dfrac{dN}{N}\right\lvert_{\,\bigt}=r\,dt\\
\\
&\Longrightarrow\quad\int_{N(t_1)}^{N(t_2)}\dfrac{dN}{N}=\int_{t_1}^{t_2} r\,dt\\
\quad\quad&\Longrightarrow\quad\int_{N(t_1)}^{N(t_2)}\dfrac{dN}{N}=\int_{t_1}^{t_2} r\,dt\\
\\
&\Longrightarrow\quad\big[\,ln\,|N|\,\big]_{N(t_1)}^{N(t_2)}= r \,\big[\,t\,\big]_{t_1}^{t_2}\\
\\
......@@ -115,8 +117,7 @@ RÉSUMÉ<br>
\\
&\Longrightarrow\quad \Large{N(t_2)=N(t_1)\;e^{\,r\,(t_2-t_1)}}
\end{align}`$
......
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