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Matheus

estudos gerais08/26/2024

3. Considere as matrizes A = (a_{ij})_{2 x 4} e B = (b_{ij})...

  1. Considere as matrizes A = (a_{ij}){2 x 4} e B = (b{ij}){4 x 2}, tais que a{ij} = i - 2j e
bij={i,se i=jj1,se ijb_{ij} = \begin{cases} i, & \text{se } i = j \\ j - 1, & \text{se } i \neq j \end{cases}

Determine:

a) o elemento c_{32} da matriz C = 4A^T + B;

b) o elemento d_{33} da matriz D = A - 2B^T.

3. Considere as matrizes A = (a_{ij})_{2 x 4} e B = (b_{ij})_{4 x 2}, tais que a_{ij} = i - 2j e
\[b_{ij} = \begin{cases} i, & \text{se } i = j \\ j - 1, & \text{se } i \neq j \end{cases}\]
Determine:

a) o elemento c_{32} da matriz C = 4A^T + B;

b) o elemento d_{33} da matriz D = A - 2B^T.
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