Problem:
Convert the following matrix to reduced row echelon form:
$\left(
\begin{array}{cccc}
 8 & -5 & 3 & -6 \\
 4 & 10 & 10 & -8 \\
 -2 & 10 & 5 & 3 \\
 5 & -1 & -7 & 8 \\
 -9 & -3 & -9 & 5 \\
 2 & -1 & 2 & 1 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{cccc}
 1 & 0 & 0 & 0 \\
 0 & 1 & 0 & 0 \\
 0 & 0 & 1 & 0 \\
 0 & 0 & 0 & 1 \\
 0 & 0 & 0 & 0 \\
 0 & 0 & 0 & 0 \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/row_reduce/12696.txt'}