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Section 2.3 Reduced Echelon form
Exercise: Find a command in SageMath to get the reduced echelon form of the matrix below.
\begin{equation*}
\begin{pmatrix}
0 \amp 3 \amp -6 \amp 6 \amp 4 \amp -5 \\
3 \amp -7 \amp 8 \amp -5 \amp 8 \amp 9 \\
3 \amp -9 \amp 12 \amp -9 \amp 6 \amp 15
\end{pmatrix}
\end{equation*}
