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Instructions.
Instructions pour la figure interactive: La figure montre le plan de vecteurs directeurs
\(\vec{s}_1,\vec{s}_2\) ainsi que les vecteurs correspondant aux lignes de la matrice
\(B\text{.}\) Un clic sur « Faire apparaitre/disparaitre la droite » fera apparaitre la droite engendrée par les combinaisons linéaires des lignes de la matrice
\(B\text{.}\)
