\begin{exercice} Même consigne que l'exercice \RefExercice{2G4_construiresomme}.

\begin{center}
\begin{tikzpicture}[general, scale=0.5]
\draw [quadrillage] (-5,-4) grid (5,5);
\axeOI{-5}{5}
\axeOJ{-4}{5}
\origineO
\foreach \N/\x/\y in {A/-2/-3}
{\draw (\x,\y) node[left] {$\N$};
\draw (\x,\y) node { $+$};}
\draw[->, color=A1,epais] (-2,-3)--(-4,-1);
\draw[color=A1] (-4,-2) node {{\boldmath $\vv u$}};
\draw[->, color=C1,epais] (-4,-1)--(4,4);
\draw[color=C1] (3.5,3) node {{\boldmath $\vv v$}};
\end{tikzpicture}\end{center}
                 
\end{exercice}
