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