sendo A=[3 2 6] , determinar
[4 9 8]
a)A.I3.
b)I2.A
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a)
![A*I_3= \left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right] * \left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] \\\\\\A*I_3=\left[\begin{array}{ccc}(3+0+0)&(0+2+0)&(0+0+6)\\(4+0+0)&(0+9+0)&(0+0+5)\end{array}\right]\\\\\\A*I_3=\left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right]](https://tex.z-dn.net/?f=A%2AI_3%3D++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B2%26amp%3B6%5C%5C4%26amp%3B9%26amp%3B5%5Cend%7Barray%7D%5Cright%5D+%2A+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26amp%3B0%26amp%3B0%5C%5C0%26amp%3B1%26amp%3B0%5C%5C0%26amp%3B0%26amp%3B1%5Cend%7Barray%7D%5Cright%5D+%5C%5C%5C%5C%5C%5CA%2AI_3%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D%283%2B0%2B0%29%26amp%3B%280%2B2%2B0%29%26amp%3B%280%2B0%2B6%29%5C%5C%284%2B0%2B0%29%26amp%3B%280%2B9%2B0%29%26amp%3B%280%2B0%2B5%29%5Cend%7Barray%7D%5Cright%5D%5C%5C%5C%5C%5C%5CA%2AI_3%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B2%26amp%3B6%5C%5C4%26amp%3B9%26amp%3B5%5Cend%7Barray%7D%5Cright%5D "A*I_3= \left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right] * \left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] \\\\\\A*I_3=\left[\begin{array}{ccc}(3+0+0)&(0+2+0)&(0+0+6)\\(4+0+0)&(0+9+0)&(0+0+5)\end{array}\right]\\\\\\A*I_3=\left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right]")
b)
![I_2*A= \left[\begin{array}{cc}1&0\\0&1\end{array}\right]*\left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right] \\\\\\I_2*A=\left[\begin{array}{ccc}(3+0)&(2+0)&(6+0)\\(0+4)&(0+9)&(0+5)\end{array}\right]\\\\\\I_2*A=\left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right]](https://tex.z-dn.net/?f=I_2%2AA%3D++%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D1%26amp%3B0%5C%5C0%26amp%3B1%5Cend%7Barray%7D%5Cright%5D%2A%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B2%26amp%3B6%5C%5C4%26amp%3B9%26amp%3B5%5Cend%7Barray%7D%5Cright%5D+%5C%5C%5C%5C%5C%5CI_2%2AA%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D%283%2B0%29%26amp%3B%282%2B0%29%26amp%3B%286%2B0%29%5C%5C%280%2B4%29%26amp%3B%280%2B9%29%26amp%3B%280%2B5%29%5Cend%7Barray%7D%5Cright%5D%5C%5C%5C%5C%5C%5CI_2%2AA%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B2%26amp%3B6%5C%5C4%26amp%3B9%26amp%3B5%5Cend%7Barray%7D%5Cright%5D "I_2*A= \left[\begin{array}{cc}1&0\\0&1\end{array}\right]*\left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right] \\\\\\I_2*A=\left[\begin{array}{ccc}(3+0)&(2+0)&(6+0)\\(0+4)&(0+9)&(0+5)\end{array}\right]\\\\\\I_2*A=\left[\begin{array}{ccc}3&2&6\\4&9&5\end{array}\right]")
b)
danieli96:
muito obrigada pela atenção
De nada.
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