\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Calcule le vecteur opposé de \(\vec{p} = \begin{pmatrix} 0 \\ -8 \end{pmatrix}\).
\(-\vec{p} = \begin{pmatrix} \input{124560}{}{3em}{2em}{}{} \\ \input{224560}{}{3em}{2em}{}{} \end{pmatrix}\)