Two marks exercise problem IV — task. Mathematics State Board, Class 10.

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A = (\begin{array}{l} 5 & 2 & 2 \\ - \sqrt{17} & 0.7 & \frac{5}{2} \\ 8 & 3 & 1 \end{array})

, then verify \((A^T)^T = A\).

\(A^T =\)

(\begin{array}{l} i & - \sqrt{i} & i \\ i & i & i \\ i & \frac{i}{i} & i \end{array})

\((A^T)^T =\)

(\begin{array}{l} i & i & i \\ - \sqrt{i} & i & \frac{i}{i} \\ i & i & i \end{array})

\(=\)

Hence verified.

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11. Two marks exercise problem IV