Update cheatsheet.fr.md

12.temporary_ins/90.electromagnetism-in-vacuum/10.maxwell-equations/20.overview/cheatsheet.fr.md

@@ -676,19 +676,19 @@ $`\mathbf{div\,\big(\overrightarrow{U}\land\overrightarrow{V}\big)=
   \text{Identifie les termes } \overrightarrow{rot}\,\overrightarrow{E} \text{ et } \overrightarrow{rot}\,\overrightarrow{B}}}`$ 
   $`\color{blue}{\scriptsize{\text{ à leurs causes avec respectivement}}}`$   
   $`\color{blue}{\scriptsize{\text{les équations de Maxwell-Faraday et Maxwell Ampère}}}`$   
-  <br>
+  <br><br><br>
   $`div\,\big(\overrightarrow{E}\land\overrightarrow{B}\big)
-  =\,\overrightarrow{B}\cdot\big(\underbrace{\overrightarrow{rot}\,\overrightarrow{E}}
-  _{\color{blue}{=-\frac{\partial \vec{B}}{\partial t}}\big)\,
-  - 
-  \overrightarrow{E}\cdot\big(\underbrace{\overrightarrow{rot}\,\overrightarrow{B}}
-  _{\color{blue}{=\mu_0\,\vec{j}+\mu_0\epsilon_0\frac{\partial \vec{E}}{\partial t}}\big)`$
-  <br>  ok
+  =\overrightarrow{E}\cdot\big(\underbrace{\overrightarrow{rot}\,\overrightarrow{B}}_{\color{blue}{=\mu_0\,\vec{j}+\mu_0\epsilon_0\frac{\partial \vec{E}}{\partial t}}}\big)\,
+  -\,\overrightarrow{B}\cdot\big(\underbrace{\overrightarrow{rot}\,\overrightarrow{E}}_{
+  \color{blue}{=-\frac{\partial \vec{B}}{\partial t}}}\big)`$   
+  <br>
   $`
   div\,\big(\overrightarrow{E}\land\overrightarrow{B}\big)
-  =\,-\,\overrightarrow{B}\cdot \dfrac{\partial \vec{B}}{\partial t}\,-\, \mu_0\,\vec{j}\cdot\overrightarrow{E}\,
-   -\,\mu_0\,\epsilon_0\dfrac{\partial \vec{E}}{\partial t}\cdot\overrightarrow{E}`$   
-  <br>
+  =\mu_0\,\vec{j}\cdot\overrightarrow{E}\,+\,\mu_0\,\epsilon_0\dfrac{\partial \vec{E}}{\partial t}\cdot\overrightarrow{E}
+  \,
+  +\,\overrightarrow{B}\cdot \dfrac{\partial \vec{B}}{\partial t}\big)
+  `$   
+  <br><br><br>
   $`\color{blue}{\scriptsize{
   \text{Souviens-toi que } \vec{u}\dfrac{\partial \vec{u}}{\partial t}=\dfrac{1}{2}\,\dfrac{\partial (\vec{u}\cdot\vec{u})}{\partial t}=\dfrac{1}{2}\,\dfrac{\partial u^2}{\partial t}}}`$   
   <br>