Commit d0a3cebf authored by Claude Meny's avatar Claude Meny

Update textbook.fr.md

parent 1533d5b8
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......@@ -305,7 +305,7 @@ $`\quad\Longleftrightarrow\quad cos(\widehat{\overrightarrow{U},\overrightarrow{
"$`\overrightarrow{U}`$ et $`\overrightarrow{V}`$ sont colinéaires"
$`\quad\Longrightarrow\quad ...`$
"$`\overrightarrow{U}`$ et $`\overrightarrow{V}`$ sont colinéaires`$"<br>
$`\overrightarrow{U}`$ et $`\overrightarrow{V}`$ sont colinéaires`$
$`\Longrightarrow\left|\overrightarrow{U}\cdot\overrightarrow{V}=+||\overrightarrow{U}||\cdot||\overrightarrow{V}||\,si\,\widehat{\overrightarrow{U},\overrightarrow{V}}=0\\
\overrightarrow{U}\cdot\overrightarrow{V}=-||\overrightarrow{U}||\cdot||\overrightarrow{V}||\,si\, \widehat{\overrightarrow{U},\overrightarrow{V}}=\pi`$
......
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