The Inverse Practice Test

$A^{-1}=\left[\begin{matrix} -\frac{2}{11}& \frac{5}{11}\\ \frac{1}{11}& -\frac{1}{10} \end{matrix}\right]$

$A^{-1}=\left[\begin{matrix} -\frac{2}{3}& \frac{5}{6}\\ \frac{1}{3}& -\frac{1}{6} \end{matrix}\right]$

$A^{-1}=\left[\begin{matrix} -\frac{2}{3}& \frac{5}{8}\\ \frac{1}{6}& -\frac{1}{8} \end{matrix}\right]$

$A^{-1}=\left[\begin{matrix} -\frac{2}{9}& \frac{5}{8}\\ \frac{1}{3}& -\frac{1}{9} \end{matrix}\right]$

$A^{-1}=\left[\begin{matrix} -\frac{2}{3}& -\frac{5}{6}\\ -\frac{1}{3}& \frac{1}{6} \end{matrix}\right]$