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Update textbook.fr.md

keep-around/3f2e8de4e215b44d4d6fbbdef199380abeae3927
Claude Meny 5 years ago
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3f2e8de4e2
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      00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/10.main/textbook.fr.md

5
00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/10.main/textbook.fr.md

@ -211,4 +211,9 @@ $`\overrightarrow{L}=\begin{vmatrix}
x & y & z\\
p_x & p_y & p_z\end{vmatrix}`$
$`\vec{U}\land\vec{V}=\begin{vmatrix} \overrightarrow{e_1}&\overrightarrow{e_2}&\overrightarrow{e_3}\\
U_1 & U_2 & U_3\\V_1 & V_2 & V_3\end{vmatrix}`$
$`=U_1V_2\,\overrightarrow{e_3}+U_2V_3\,\overrightarrow{e_1}+U_3V_1\,\overrightarrow{e_2}`$
$`-\,U_1V_3\,\overrightarrow{e_2}-U_2V_1\,\overrightarrow{e_3}-U_3V_2\,\overrightarrow{e_1}`$
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