The matrix is in reduced echelon form. $$\left. \left[ \begin{array} { l l l }
1 & 0 & 0 \
0 & 0 & 0 \
0 & 1 & 0
\end{array} \right] \quad \begin{array} { l }
8 \
0 \
5
\end{array} \right]$$

Question

The matrix is in reduced echelon form. $$\left. \left[ \begin{array} { l l l } 
1 & 0 & 0 \
0 & 0 & 0 \
0 & 1 & 0
\end{array} \right] \quad \begin{array} { l } 
8 \
0 \
5
\end{array} \right]$$

Quizplus · Accepted Answer

For a matrix to be in reduced echelon form, each leading entry must be in a column to the right of the leading entry in the previous row. Here, the leading entry in the third row is to the left of the leading entry in the second row, violating this condition.

The Matrix Is in Reduced Echelon Form