diff --git a/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/02.electromagnetic-waves-vacuum/02.electromagnetic-waves-vacuum-main/textbook.fr.md b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/02.electromagnetic-waves-vacuum/02.electromagnetic-waves-vacuum-main/textbook.fr.md
index f79c16b51..5645fa3a1 100644
--- a/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/02.electromagnetic-waves-vacuum/02.electromagnetic-waves-vacuum-main/textbook.fr.md
+++ b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/02.electromagnetic-waves-vacuum/02.electromagnetic-waves-vacuum-main/textbook.fr.md
@@ -203,14 +203,14 @@ et $`\overrightarrow{B}`$ selon la forme : $`\overrightarrow{u}\cdot\overrightar
 $`\overrightarrow{u}`$ est le vecteur caractérisant la direction de l'onde.
 
 Onde EM plane progressive :<br>
-$`\Longleftrightarrow \;`\overrightarrow{B}`$
+$`\Longleftrightarrow \;\overrightarrow{B}`$
 
 $`\begin{tabular}{l c r}
 Candidat & Note $N$ & Résultat \\
 François & 9,7 & Refusé\\
 Gilbert & 18,7 & Admis \\
 Jean & 12,3 & Admis \\
-\end{tabular}`$
+\end{tabular}.`$