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Commit 6b4c3c4c authored by Claude Meny's avatar Claude Meny
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Update cheatsheet.fr.md

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    12.temporary_ins/69.waves/30.n3/20.overview/cheatsheet.fr.md
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    ...@@ -1390,7 +1390,6 @@ une **valeur moyenne**, et de leurs **écarts respectifs** par rapport à la val ...@@ -1390,7 +1390,6 @@ une **valeur moyenne**, et de leurs **écarts respectifs** par rapport à la val
    <br> <br>
    $`\begin{array}\quad = &A_1\,cos\big(\underbrace{\omega_1 t + \overrightarrow{k}_1\cdot\overrightarrow{r}+\varphi_1}_{\color{blue}{\theta_1(\vec{r},t)}}\big)\\ $`\begin{array}\quad = &A_1\,cos\big(\underbrace{\omega_1 t + \overrightarrow{k}_1\cdot\overrightarrow{r}+\varphi_1}_{\color{blue}{\theta_1(\vec{r},t)}}\big)\\
    &+ A_2\,cos\big(\underbrace{\omega_2 t + \overrightarrow{k}_2\cdot\overrightarrow{r}+\varphi_2}_{\color{blue}{\theta_2(\vec{r},t)}}\big)\end{array}`$ &+ A_2\,cos\big(\underbrace{\omega_2 t + \overrightarrow{k}_2\cdot\overrightarrow{r}+\varphi_2}_{\color{blue}{\theta_2(\vec{r},t)}}\big)\end{array}`$
    <br>
    $`\quad = A_1\,cos\,\theta_1 + A_2\,cos\,\theta_2`$ $`\quad = A_1\,cos\,\theta_1 + A_2\,cos\,\theta_2`$
    <br> <br>
    $`\quad = (A_{moy}+ \Delta A_{1-2})\,cos\,\theta_1 + (A_{moy} - \Delta A_{1-2})\,cos\,\theta_2`$ $`\quad = (A_{moy}+ \Delta A_{1-2})\,cos\,\theta_1 + (A_{moy} - \Delta A_{1-2})\,cos\,\theta_2`$
    ...@@ -1410,3 +1409,5 @@ $`\quad = (A_{moy}+ \Delta A_{1-2})\,cos\,\theta_1 + (A_{moy} - \Delta A_{1-2})\ ...@@ -1410,3 +1409,5 @@ $`\quad = (A_{moy}+ \Delta A_{1-2})\,cos\,\theta_1 + (A_{moy} - \Delta A_{1-2})\
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