Systems of linear equations: System of linear equations and matrices
Row reduction of a matrix to a reduced echelon form
Determine the reduced row echelon form of the matrix \[\matrix{1 &5 & -5 &-5 \\
-1 &11 &-3 &-19 \\
-1 &-5 &-11 &21 \\}\] You can enter an intermediate result to check whether you're still on the right track.
-1 &11 &-3 &-19 \\
-1 &-5 &-11 &21 \\}\] You can enter an intermediate result to check whether you're still on the right track.
| \(\matrix{1 &5 & -5 &-5 \\ -1 &11 &-3 &-19 \\ -1 &-5 &-11 &21 \\}\sim{} \) |
\Box &\Box &\Box &\Box \\
\Box &\Box &\Box &\Box}\)
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