Determine Whether the Matrix $\left[ \begin{array} { l l l } 1 & 2 & 0 \\0 & 1 & 3\end{array} \right]$

question 112

Essay

Determine whether the matrix $\left[ \begin{array} { l l l } 1 & 2 & 0 \\0 & 1 & 3\end{array} \right]$ is in echelon or reduced echelon form. Write the corresponding system of equations.

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