\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Calculate the product of the vector \(\vec{p} = \begin{pmatrix} 7 \\ -1 \end{pmatrix}\) by \(0.5\).
\(\dfrac{1}{2}\vec{p} =\begin{pmatrix} \input{124576}{}{3em}{2em}{}{}\\ \input{224576}{}{3em}{2em}{}{}\\ \end{pmatrix} \)