Questão 1896582

\(\begin{bmatrix} 0 & 7 &5 \\ 6 & 0 &-4 \\ 2& 4 & 0 \end{bmatrix}\)

\(\begin{bmatrix} 3 & -6 &-1 \\ 4 & -8 &4 \\ -1& 2 & 2 \end{bmatrix}\)

\(\begin{bmatrix} 0 & 0 &1 \\ 1 & -5 &0 \\ 0& 2 & 0 \end{bmatrix}\)

\(\begin{bmatrix} 9 & 1 &-3 \\ 4 & -6 &3 \\ 2& -4 & 5 \end{bmatrix}\)