Use elementary column operation \( C_{2} \rightarrow C_{2}+2 C_{1} \) in the following matrix eq...

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Use elementary column operation \( C_{2} \rightarrow C_{2}+2 C_{1} \) in the following matrix equation:
\[
\left[\begin{array}{ll}
2 & 1 \\
2 & 0
\end{array}\right]=\left[\begin{array}{ll}
3 & 1 \\
2 & 0
\end{array}\right]\left[\begin{array}{rr}
1 & 0 \\
-1 & 1
\end{array}\right]
\]
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