escreva a matriz A=(aij)2×3 onde aij= 2i - 3j
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A(aij)2x3 = ![\left[\begin{array}{ccc}a11&a12&a13\\a21&a22&a23\end{array}\right]](https://tex.z-dn.net/?f=+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da11%26amp%3Ba12%26amp%3Ba13%5C%5Ca21%26amp%3Ba22%26amp%3Ba23%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}a11&a12&a13\\a21&a22&a23\end{array}\right]")
A =![\left[\begin{array}{ccc}2.1-3.1&2.1-3.2&2.1-3.3\\2.2-3.1&2.2-3.2&2.2-3.3\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2.1-3.1%26amp%3B2.1-3.2%26amp%3B2.1-3.3%5C%5C2.2-3.1%26amp%3B2.2-3.2%26amp%3B2.2-3.3%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}2.1-3.1&2.1-3.2&2.1-3.3\\2.2-3.1&2.2-3.2&2.2-3.3\end{array}\right]")
resolvendo:
A =![\left[\begin{array}{ccc}-1&-4&-8\\1&-2&-5\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-1%26amp%3B-4%26amp%3B-8%5C%5C1%26amp%3B-2%26amp%3B-5%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}-1&-4&-8\\1&-2&-5\end{array}\right]")
A =
resolvendo:
A =
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