Matrices And Determinants

$$\left(\frac{1}{2}\right)\left[\begin{array}{lll}0 & 1 & 2 \\ 3 & 2 & 1 \\ 4 & 2 & 3\end{array}\right]$$

$$\left[\begin{array}{ccc}\frac{1}{2} & \frac{-1}{2} & \frac{1}{2} \\ -4 & 3 & -1 \\ \frac{5}{2} & \frac{-3}{2} & \frac{1}{2}\end{array}\right]$$

$$\left[\begin{array}{ccc}\frac{1}{2} & -1 & \frac{5}{2} \\ 1 & -6 & 3 \\ 1 & 2 & -1\end{array}\right]$$

$$\left(\frac{1}{2}\right)\left[\begin{array}{ccc}1 & -1 & -1 \\ -8 & 6 & -2 \\ 5 & -3 & 1\end{array}\right]$$