# Inverse of 3 by 3 Matrix Using Gauss-Jordan on Video

In this video, the Matrix Inverse of a 3 by 3 matrix is found using Gauss-Jordan method based on elementary row operations is presented.

Question: Find the inverse of the 3 by 3 matrix is given by
\[
\begin{bmatrix}
-1 & 2 & 1 \\
0 & 1 & 1 \\
1 & -1 & -1
\end{bmatrix}
\]

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