Show that \( A B \neq B A \) in each of the following cases: \[ A=\...

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Show that \( A B \neq B A \) in each of the following cases:
\[
A=\left[\begin{array}{rrr}
10 & -4 & -1 \\
-11 & 5 & 0 \\
9 & -5 & 1
\end{array}\right] \text { and } B=\left[\begin{array}{ccc}
1 & 2 & 2 \\
3 & 4 & 1 \\
1 & 3 & 2
\end{array}\right]
\]
W)
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