Commit 402057c0 authored by Claude Meny's avatar Claude Meny

Update textbook.fr.md

parent 0c5dea41
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...@@ -417,7 +417,7 @@ $`\displaystyle\quad\overrightarrow{U}\cdot\overrightarrow{V}=U_1\,V_1 + U_2\,V_ ...@@ -417,7 +417,7 @@ $`\displaystyle\quad\overrightarrow{U}\cdot\overrightarrow{V}=U_1\,V_1 + U_2\,V_
##### Calcul de l’angle entre 2 vecteurs dans une base orthonormée de l'espace ($`n=3`$) ##### Calcul de l’angle entre 2 vecteurs dans une base orthonormée de l'espace ($`n=3`$)
$`\begin{array}{l}\left.\overrightarrow{U}\cdot\overrightarrow{V}=||\overrightarrow{U}||\cdot||\overrightarrow{V}||\cdot $`\begin{array}{l}\left.\overrightarrow{U}\cdot\overrightarrow{V}=||\overrightarrow{U}||\cdot||\overrightarrow{V}||\cdot
cos (\widehat{\overrightarrow{U},\overrightarrow{V}})// cos (\widehat{\overrightarrow{U},\overrightarrow{V}}) \\
\overrightarrow{U}\cdot\overrightarrow{V}=U_1\,V_1 + U_2\,V_2 + U_3\,V_3\right|\end{array}`$ \overrightarrow{U}\cdot\overrightarrow{V}=U_1\,V_1 + U_2\,V_2 + U_3\,V_3\right|\end{array}`$
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