determine a seguinte matrizes
B=(bij)2x3 tal , que bij = 2i-3j
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Olá, Gugu.
![b_{11}=2-3=-1\\b_{12}=2-6=-4\\b_{13}=2-9=-7\\b_{21}=4-3=1\\b_{22}=4-6=-2\\b_{23}=4-9=-5\\\\
B= \left[\begin{array}{ccc}b_{11}&b_{12}&b_{13}\\b_{21}&b_{22}&b_{23}\end{array}\right] =\left[\begin{array}{ccc}-1&-4&-7\\1&-2&-5\end{array}\right]](https://tex.z-dn.net/?f=b_%7B11%7D%3D2-3%3D-1%5C%5Cb_%7B12%7D%3D2-6%3D-4%5C%5Cb_%7B13%7D%3D2-9%3D-7%5C%5Cb_%7B21%7D%3D4-3%3D1%5C%5Cb_%7B22%7D%3D4-6%3D-2%5C%5Cb_%7B23%7D%3D4-9%3D-5%5C%5C%5C%5C%0AB%3D++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Db_%7B11%7D%26amp%3Bb_%7B12%7D%26amp%3Bb_%7B13%7D%5C%5Cb_%7B21%7D%26amp%3Bb_%7B22%7D%26amp%3Bb_%7B23%7D%5Cend%7Barray%7D%5Cright%5D+%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-1%26amp%3B-4%26amp%3B-7%5C%5C1%26amp%3B-2%26amp%3B-5%5Cend%7Barray%7D%5Cright%5D+ "b_{11}=2-3=-1\\b_{12}=2-6=-4\\b_{13}=2-9=-7\\b_{21}=4-3=1\\b_{22}=4-6=-2\\b_{23}=4-9=-5\\\\
B= \left[\begin{array}{ccc}b_{11}&b_{12}&b_{13}\\b_{21}&b_{22}&b_{23}\end{array}\right] =\left[\begin{array}{ccc}-1&-4&-7\\1&-2&-5\end{array}\right]")
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