Commit bbc4dcf5 authored by Claude Meny's avatar Claude Meny

Update cheatsheet.fr.md

parent 76f70c6c
Pipeline #15797 canceled with stage
......@@ -910,7 +910,7 @@ e^{\,-\,i\;\big(\frac{\varphi1-\varphi2}{2}\big)}
* d'*amplitudes égales*
* et se propagent, l'une *vers les $`x`$ croissants* **et** l'autre *vers les $`x`$ décroissants*
<br>
![waves_interferences_ventres_noeuds](waves_interferences_ventres_noeuds_niv_3a_L1200.gif)
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......@@ -926,6 +926,11 @@ e^{\,-\,i\;\big(\frac{\varphi1-\varphi2}{2}\big)}
$`\color{brown}{\mathbf{U(x,t)}}\; = U_1(x,t) + U_2(x,t)`$
à continuer.
![](stationary-wave-1D-ventre_L1200.jpg)
![](waves-interferences-ventres-noeuds-niv_3a-2_L1200.jpg)
![](stationary-wave-1D-noeud_L1200.jpg)
<!-------------------
$`\begin{align} \quad &=A\;\big[\,cos(\underbrace{\omega t - kx}_{\color{blue}{\text{ posons }\\ \omega t + kx \,=\, \alpha}} + \varphi_1) + cos(\underbrace{\omega t - kx}_{\color{blue}{=\; \alpha}} + \varphi_1)\,\big]
......
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