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Prove that \((A^T)^T\) \(=\) \(A\), if \(A\) \(=\) \(\begin{bmatrix}
9 & 5 & 8\\
9 & 3 & 9\\
6 & 5 & 6
\end{bmatrix}\).
9 & 5 & 8\\
9 & 3 & 9\\
6 & 5 & 6
\end{bmatrix}\).
\(A^T\) \(=\)
\((A^T)^T\) \(=\)
Thus, \((A^T)^T\) \(A\).
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