0004.ptx

<exercise checkit-seed="0004" checkit-slug="G2" checkit-title="Determinants">
  <statement>
    <p>Show how to compute the determinant of the matrix <me>A= \left[\begin{array}{cccc}
3 &amp; -5 &amp; -6 &amp; 0 \\
-2 &amp; -2 &amp; -4 &amp; 0 \\
-2 &amp; -6 &amp; 4 &amp; 0 \\
2 &amp; -3 &amp; 3 &amp; 2
\end{array}\right] .</me>.</p>
  </statement>
  <answer>
    <me>\operatorname{det}\  \left[\begin{array}{cccc}
3 &amp; -5 &amp; -6 &amp; 0 \\
-2 &amp; -2 &amp; -4 &amp; 0 \\
-2 &amp; -6 &amp; 4 &amp; 0 \\
2 &amp; -3 &amp; 3 &amp; 2
\end{array}\right] = -448 </me>
  </answer>
</exercise>