If ![A=\left[\begin{array}{ccc}1&2&-3\\5&0&2\\1&-1&1\end{array}\right],B=\left[\begin{array}{ccc}3&-1&2\\4&2&5\\2&0&3\end{array}\right], and C=\left[\begin{array}{ccc}4&1&2\\0&3&2\\1&-2&3\end{array}\right]](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26amp%3B2%26amp%3B-3%5C%5C5%26amp%3B0%26amp%3B2%5C%5C1%26amp%3B-1%26amp%3B1%5Cend%7Barray%7D%5Cright%5D%2CB%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B-1%26amp%3B2%5C%5C4%26amp%3B2%26amp%3B5%5C%5C2%26amp%3B0%26amp%3B3%5Cend%7Barray%7D%5Cright%5D%2C+and+C%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D4%26amp%3B1%26amp%3B2%5C%5C0%26amp%3B3%26amp%3B2%5C%5C1%26amp%3B-2%26amp%3B3%5Cend%7Barray%7D%5Cright%5D "A=\left[\begin{array}{ccc}1&2&-3\\5&0&2\\1&-1&1\end{array}\right],B=\left[\begin{array}{ccc}3&-1&2\\4&2&5\\2&0&3\end{array}\right], and C=\left[\begin{array}{ccc}4&1&2\\0&3&2\\1&-2&3\end{array}\right]")
then compute (A + B) and (B – C). Also, verify that A + (B – C) = (A + B) – C.
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