Fowler Whittaker
04/17/2023 · Junior High School
D) Considérons les vecteurs \( \vec{u} \) et \( \vec{v} \) tels que \( \|\vec{v}\|=5 \). \( \|\vec{v}\|=2 \) et \( \vec{u} \cdot \vec{v}=10 \). Montrez que la norme du vecteur \( \vec{w} \vec{i}=2 \vec{u}+3 \vec{v} \) est égale à 16 et que celle du \( \vec{w}=2 \vec{u}-3 \vec{v} \) est égale à 4
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La norme de \( \vec{w} = 2\vec{u} + 3\vec{v} \) est 19, et celle de \( \vec{w} = 2\vec{u} - 3\vec{v} \) est 11.
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