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Update textbook.fr.md

keep-around/c43cbf4c297546806a4d2a288402b9262d617ed1
Claude Meny 5 years ago
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c43cbf4c29
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      00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/textbook.fr.md

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00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/textbook.fr.md

@ -28,7 +28,7 @@ cartésiennes $`(X_1, Y_1, Z_1)`$ et $`(X_2, Y_2, Z_2)`$ est donné par le théo
$`d_{12}=\sqrt{(X_2-X_1)^2+(Y_2-Y_1)^2+(Z_2-Z_1)^2}`$
$`d_{12}=\sqrt{(X_2-X_1)^2+(Y_2-Y_1)^2+(Z_2-Z_1)^2}=\displaystyle\sqrt\sum_{i=1}^3(X_2^î-X_1î)^2`$
$`d_{12}=\sqrt{(X_2-X_1)^2+(Y_2-Y_1)^2+(Z_2-Z_1)^2}=\displaystyle\sqrt{\sum_{i=1}^3(X_2^î-X_1î)^2}`$

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