Respuesta :

[tex]\bf 3 \begin{bmatrix} -7\\11\\2 \end{bmatrix}\implies \begin{bmatrix} 3(-7)\\3(11)\\3(2) \end{bmatrix}\implies \begin{bmatrix} -21\\33\\6 \end{bmatrix}\leftarrow \begin{array}{llll} \textit{3 rows, 1 column}\\ 3\times 1 \end{array}[/tex]

gmany

Answer:

3 × 1

Step-by-step explanation:

If we multiply the matrix by a number, the size of this product is the same as the size of the matrix.

The size of a matrix n × m

n - number of rows

m - number of columns

We have the matrix:

[tex]\left[\begin{array}{ccc}-7\\11\\2\end{array}\right] \Rightarrow3\ rows,\ 1\ column\Rightarrow3\times1[/tex]

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