Find the inverse of each of the following matrices by using element...

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Find the inverse of each of the following matrices by using elementary row transformations:
\[
\left[\begin{array}{rrr}
2 & 0 & -1 \\
5 & 1 & 0 \\
0 & 1 & 3
\end{array}\right]
\]
\( \mathrm{P} \)
W
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