Update cheatsheet.fr.md

12.temporary_ins/40.classical-mechanics/30.n3/30.point-kinematics/20.overview/cheatsheet.fr.md

@@ -242,17 +242,17 @@ RÉSUMÉ
     ce qui entraîne   
     <br>
     **$`\begin{align}
-    \left.\dfrac{d\overrightarrow{e_r}}{dt}\right\vert_{\mathscr{R}}=\,&\dfrac{d(\sin\theta\,\cos\varphi)}{dt}\,\overrightarrow{e_x}\\
+    \left.\dfrac{d\overrightarrow{e_r}}{dt}\right\vert_{\mathscr{R}}=&\dfrac{d(\sin\theta\,\cos\varphi)}{dt}\,\overrightarrow{e_x}\\
     &+\dfrac{d(\sin\theta\,\sin\varphi)}{dt}\,\overrightarrow{e_y}+\dfrac{d(\cos\theta)}{dt}\,\overrightarrow{e_z}
     \end{align}`$**   
     <br>
     **$`\begin{align}
-    \left.\dfrac{d\overrightarrow{e_{\theta}}}{dt}\right\vert_{\mathscr{R}}=\,&\dfrac{d(\cos\theta\,\cos\varphi)}{dt}\,\overrightarrow{e_x}\\
+    \left.\dfrac{d\overrightarrow{e_{\theta}}}{dt}\right\vert_{\mathscr{R}}=&\dfrac{d(\cos\theta\,\cos\varphi)}{dt}\,\overrightarrow{e_x}\\
     &+\dfrac{d(\cos\theta\,\sin\varphi)}{dt}\,\overrightarrow{e_y}+\dfrac{d(-\sin\theta)}{dt}\,\overrightarrow{e_z}
     \end{align}`$**   
     <br>
     **$`\begin{align}
-    \left.\dfrac{d\overrightarrow{e_{\varphi}}}{dt}\right\vert_{\mathscr{R}}=\,&\dfrac{d(-\sin\varphi)}{dt}\,\overrightarrow{e_x}\\
+    \left.\dfrac{d\overrightarrow{e_{\varphi}}}{dt}\right\vert_{\mathscr{R}}=&\dfrac{d(-\sin\varphi)}{dt}\,\overrightarrow{e_x}\\
     &+\dfrac{d(\cos\varphi)}{dt}\,\overrightarrow{e_y}+ 0\,\overrightarrow{e_z}
     \end{align}`$**