Commit 35d6d8a5 authored by Claude Meny's avatar Claude Meny

Update cheatsheet.fr.md

parent 957df33e
Pipeline #15678 canceled with stage
......@@ -301,6 +301,8 @@ RÉSUMÉ
##### L'équivalence des fonctions sinus et cosinus.
$`U(x,t)=A\cdot cos (\omega t - kx)`$$`\; A\cdot cos (\omega t - kx + \dfrac{\pi}{2} - \dfrac{\pi}{2})
##### L'écriture en notation complexe.
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