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A + B = ![\left[\begin{array}{ccc}1&2&3\\-4&5&6\\4&6&8\end{array}\right] + \left[\begin{array}{ccc}-7&-8&9\\12&6&5\\8&7&4\end{array}\right] = \left[\begin{array}{ccc}-6&-6&12\\8&11&11\\12&13&12\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26amp%3B2%26amp%3B3%5C%5C-4%26amp%3B5%26amp%3B6%5C%5C4%26amp%3B6%26amp%3B8%5Cend%7Barray%7D%5Cright%5D++%2B+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-7%26amp%3B-8%26amp%3B9%5C%5C12%26amp%3B6%26amp%3B5%5C%5C8%26amp%3B7%26amp%3B4%5Cend%7Barray%7D%5Cright%5D+%3D+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-6%26amp%3B-6%26amp%3B12%5C%5C8%26amp%3B11%26amp%3B11%5C%5C12%26amp%3B13%26amp%3B12%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}1&2&3\\-4&5&6\\4&6&8\end{array}\right] + \left[\begin{array}{ccc}-7&-8&9\\12&6&5\\8&7&4\end{array}\right] = \left[\begin{array}{ccc}-6&-6&12\\8&11&11\\12&13&12\end{array}\right]")
B - C =![\left[\begin{array}{ccc}-7&-8&9\\12&6&5\\8&7&4\end{array}\right] - \left[\begin{array}{ccc}2&3&-4\\6&7&1\\2&8&7\end{array}\right] = \left[\begin{array}{ccc}-9&-11&13\\6&-1&4\\6&-1&-3\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-7%26amp%3B-8%26amp%3B9%5C%5C12%26amp%3B6%26amp%3B5%5C%5C8%26amp%3B7%26amp%3B4%5Cend%7Barray%7D%5Cright%5D+-+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%26amp%3B3%26amp%3B-4%5C%5C6%26amp%3B7%26amp%3B1%5C%5C2%26amp%3B8%26amp%3B7%5Cend%7Barray%7D%5Cright%5D++%3D+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-9%26amp%3B-11%26amp%3B13%5C%5C6%26amp%3B-1%26amp%3B4%5C%5C6%26amp%3B-1%26amp%3B-3%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}-7&-8&9\\12&6&5\\8&7&4\end{array}\right] - \left[\begin{array}{ccc}2&3&-4\\6&7&1\\2&8&7\end{array}\right] = \left[\begin{array}{ccc}-9&-11&13\\6&-1&4\\6&-1&-3\end{array}\right]")
Espero ter ajudado!
B - C =
Espero ter ajudado!
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