Bonsoir,
[tex]I:\left(\begin{array}{c}4\\ 1\\3\end{array}\right) \ \ \ J:\left(\begin{array}{c}6\\ 3\\1\end{array}\right)[/tex]
[tex]K: \left(\begin{array}{c}\frac{4+6}{2}\\\\ \frac{1 + 3}{2}\\\\\frac{3+1}{2}\end{array}\right) = \left(\begin{array}{c}5\\ 2\\2\end{array}\right)\\\\\\\boxed{K: \left(\begin{array}{c}5\\ 2\\2\end{array}\right)}[/tex]
Bonne soirée.
