WeBWorK Standalone Renderer

Find the inverse of the matrix

$A = \left[\begin{array}{ccc} -2 &1 &-2\cr -4 &4 &-1\cr 2 &1 &3 \end{array}\right].$

The inverse is

$A^{-1} =$ $\left[\Rule{0pt}{3.6em}{0pt}\right.$ $\left]\Rule{0pt}{3.6em}{0pt}\right.$