👤

\left([tex]\begin{array}{rrr}2 & 0 & 1 \\ 0 & -3 & 0 \\ 1 & 0 & 2\end{array}\right) X=X\left(\begin{array}{rrr}2 & 0 & 1 \\ 0 & -3 & 0 \\ 1 & 0 & 2\end{array}\right)$.[/tex]

Răspuns :