Update cheatsheet.fr.md

12.temporary_ins/08.conservative-vector-fields/20.conservative-vector-fields-properties/20.overview/cheatsheet.fr.md

@@ -445,7 +445,7 @@ figure à faire.
 
 $`\overrightarrow{F}\cdot\overrightarrow{dl}=m\,\overrightarrow{\mathscr{v}}\times\overrightarrow{\mathscr{v}}\,dt`$
 
-$`\overrightarrow{F}\cdot\overrightarrow{dl}=\underset{m\,\overrightarrow{\mathscr{v}}}{\overrightarrow{F}=m\overrightarrow{a}}\times\overrightarrow{\mathscr{v}}\,dt`$
+$`\overrightarrow{F}\cdot\overrightarrow{dl}=\underset{\overrightarrow{F}=m\overrightarrow{a}}{m\,\overrightarrow{\mathscr{a}}\times\overrightarrow{\mathscr{v}}\,dt`$
 
 ![](from-potential-to-potential-energy_v2_L800.gif)