Respostas

2014-01-27T11:02:57-02:00
  \left[\begin{array}{ccc}a11&a12&a13\\a21&a22&a23\\a31&a32&a33\end{array}\right]

Aij= 3i+j+2

  \left[\begin{array}{ccc}6&7&8\\9&10&11\\12&13&14\end{array}\right]

soma da terceira linha é: 12 + 13 + 14 = 39

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