Questão 1493913

Julgue os itens de 81 a 84, considerando a matriz \(M=\left(m_{ij}\right)_{3x3},\) tal que \(m_{ij}\) = \(\left\{\begin{matrix} \ \ \ \ \ \ \ \ 1,se\ i=j \\ i^2-2j,se\ i\neq j \end{matrix}\right..\)

\(M^{-1}=\begin{bmatrix} \frac{1}{4}& -\frac{1}{2}& \frac{1}{4}\\ -\frac{4}{11}& \frac{9}{11}& -\frac{2}{11}\\ \frac{3}{44}& -\frac{13}{22}& \frac{7}{44}\\ \end{bmatrix}.\)