If $A=\left[\begin{array}{ccc}0 & 0 & -1 \ 0 & -1 & 0 \ -1 & 0 & 0\end{array} ight]$, then

Question

If $A=\left[\begin{array}{ccc}0 & 0 & -1 \ 0 & -1 & 0 \ -1 & 0 & 0\end{array}ight]$, then

Aicharya · Accepted Answer

Here $|\mathrm{A}|=-1(-1)=1$ and $\quad A^{-1}=\left[\begin{array}{ccc}0 & 0 & -1 \ 0 & -1 & 0 \ -1 & 0 & 0\end{array}ight]=A$

If $A=\left[\begin{array}{ccc}0 & 0 & -1 \\ 0 & -1 & 0 \\ -1 & 0 & 0\end{array}\right]$, then