Sobre Matrizes
Uma questão que seja respondida já faz toda a diferença :)
1) Dadas as Matrizes determine x e y na igualdade
![\left[\begin{array}{ccc}x-3&-3\\25&7&\\&&\end{array}\right] = \left[\begin{array}{ccc}4&-3\\y^2&7&\\&&\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx-3%26amp%3B-3%5C%5C25%26amp%3B7%26amp%3B%5C%5C%26amp%3B%26amp%3B%5Cend%7Barray%7D%5Cright%5D+%3D+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D4%26amp%3B-3%5C%5Cy%5E2%26amp%3B7%26amp%3B%5C%5C%26amp%3B%26amp%3B%5Cend%7Barray%7D%5Cright%5D "\left[\begin{array}{ccc}x-3&-3\\25&7&\\&&\end{array}\right] = \left[\begin{array}{ccc}4&-3\\y^2&7&\\&&\end{array}\right]")
2) Construa a matriz A (aij) do tipo 2x3 onde aij=i²+j
3) Dada a matriz, calcule :
![A) \left[\begin{array}{ccc}-5&-3\\2&7&\\&&\end{array}\right] B) \left[\begin{array}{ccc}-2&-3\\12&7&\\&&\end{array}\right]](https://tex.z-dn.net/?f=+A%29+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-5%26amp%3B-3%5C%5C2%26amp%3B7%26amp%3B%5C%5C%26amp%3B%26amp%3B%5Cend%7Barray%7D%5Cright%5D++B%29+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-2%26amp%3B-3%5C%5C12%26amp%3B7%26amp%3B%5C%5C%26amp%3B%26amp%3B%5Cend%7Barray%7D%5Cright%5D "A) \left[\begin{array}{ccc}-5&-3\\2&7&\\&&\end{array}\right] B) \left[\begin{array}{ccc}-2&-3\\12&7&\\&&\end{array}\right]")
a) A.B
Soluções para a tarefa
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Respostas questão 3 letras A e B
Anexos:
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