\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Calcule \(2\big(\vec{u} + 2\vec{v}\big)\) où \(\vec{u} = \begin{pmatrix} 1 \\ -2 \end{pmatrix}\) et \(\vec{v} = \begin{pmatrix} 3 \\ 5 \end{pmatrix}\).
\(2\big(\vec{u} + 2\vec{v}\big) = \begin{pmatrix} \input{124580}{}{3em}{2em}{}{} \\ \input{224580}{}{3em}{2em}{}{} \end{pmatrix}\)