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Não consegui entender muito bem, mas creio que seja isso:![A = \left[\begin{array}{ccc}0&2&3\\1&3&2\\0&1&2\end{array}\right] \\\\
Repita\ as\ 2\ primeiras\ ao\ lado\ da\ matriz\ e\ some\ o\ produto\ das\ dp\ ds\\\
detA= 0.3.2 + 2.2.0 + 3.1.1 - 2.1.2 - 0.2.1 - 3.3.0\\\
detA = 0 + 0 + 3 - 4 - 0 -0 \\\
det A = -1\\\\
B = \left[\begin{array}{ccc}-1&3&2\\2&1&4\\1&-3&2\end{array}\right] \\
repita\ o\ mesmo\ processo\\
detB = -1.1.2 + 3.4.1 + 2.2.-3 - 3.2.2 -(-1).4.-3 - 2.1.1\\
detB = -2 + 12 - 12 - 12 - 12 -2 \\
det B = -28](https://tex.z-dn.net/?f=+A+%3D++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D0%26amp%3B2%26amp%3B3%5C%5C1%26amp%3B3%26amp%3B2%5C%5C0%26amp%3B1%26amp%3B2%5Cend%7Barray%7D%5Cright%5D+%5C%5C%5C%5C%0ARepita%5C+as%5C+2%5C+primeiras%5C+ao%5C+lado%5C+da%5C+matriz%5C+e%5C+some%5C+o%5C+produto%5C+das%5C++dp%5C++ds%5C%5C%5C%0AdetA%3D+0.3.2+%2B+2.2.0+%2B+3.1.1+-+2.1.2+-+0.2.1+-+3.3.0%5C%5C%5C%0AdetA+%3D+0+%2B+0+%2B+3+-+4+-+0+-0+%5C%5C%5C%0Adet+A+%3D+-1%5C%5C%5C%5C%0AB+%3D+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-1%26amp%3B3%26amp%3B2%5C%5C2%26amp%3B1%26amp%3B4%5C%5C1%26amp%3B-3%26amp%3B2%5Cend%7Barray%7D%5Cright%5D+%5C%5C%0Arepita%5C+o%5C+mesmo%5C+processo%5C%5C%0AdetB+%3D+-1.1.2+%2B+3.4.1+%2B+2.2.-3+-+3.2.2+-%28-1%29.4.-3+-+2.1.1%5C%5C%0AdetB+%3D+-2+%2B+12+-+12+-+12+-+12+-2+%5C%5C%0Adet+B+%3D+-28 "A = \left[\begin{array}{ccc}0&2&3\\1&3&2\\0&1&2\end{array}\right] \\\\
Repita\ as\ 2\ primeiras\ ao\ lado\ da\ matriz\ e\ some\ o\ produto\ das\ dp\ ds\\\
detA= 0.3.2 + 2.2.0 + 3.1.1 - 2.1.2 - 0.2.1 - 3.3.0\\\
detA = 0 + 0 + 3 - 4 - 0 -0 \\\
det A = -1\\\\
B = \left[\begin{array}{ccc}-1&3&2\\2&1&4\\1&-3&2\end{array}\right] \\
repita\ o\ mesmo\ processo\\
detB = -1.1.2 + 3.4.1 + 2.2.-3 - 3.2.2 -(-1).4.-3 - 2.1.1\\
detB = -2 + 12 - 12 - 12 - 12 -2 \\
det B = -28")
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