Update cheatsheet.fr.md

12.temporary_ins/90.electromagnetism-in-vacuum/30.maxwell-electromagnetism-potentials/cheatsheet.fr.md

@@ -112,12 +112,12 @@ RÉSUMÉ
 
 --------------->
 
-$`\overrightarrow{rot}\,\overrightarrow{E}=\overrightarrow{rot}\left(-\dfrac{\partial \overrightarrow{B}}{\partial t}=-\dfrac{\partial \big(\overrightarrow{rot}\,\overrightarrow{A}\big)
-}{\partial t}=-\overrightarrow{rot}\,\dfrac{\partial \overrightarrow{A}
-}{\partial t}`$
+$`\overrightarrow{rot}\,\overrightarrow{E}=\overrightarrow{rot}\left(-\dfrac{\partial \overrightarrow{B}}{\partial t}\right)
+=-\dfrac{\partial \big(\overrightarrow{rot}\,\overrightarrow{A}\big)}{\partial t}
+=-\overrightarrow{rot}\,\dfrac{\partial \overrightarrow{A}}{\partial t}`$
 
 $`\Longrightarrow \overrightarrow{rot}\,\left(\overrightarrow{E+\dfrac{\partial \overrightarrow{A}
-}{\partial t}}=\overrightarrow{0}`$
+}{\partial t}}\right)=\overrightarrow{0}`$
 
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