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$[\begin{array}{c} - 2 & 1 \\ 3 & - 2 \end{array}]$

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Transpose the matrix by switching its rows to columns.

$[\begin{array}{c} - 2 & 3 \\ 1 & - 2 \end{array}]$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$