Question

considere as matrizes abaixo e determine o resultado de 5.A + B​

Answer 1

Resposta:

Leia abaixo

Explicação passo-a-passo:

$A = \large\mathsf{\begin{vmatrix}2&1\\3&2\end{vmatrix}}$

$B = \large\mathsf{\begin{vmatrix}1&5\\2&-2\end{vmatrix}}$

$5A = \large\mathsf{\begin{vmatrix}10&5\\15&10\end{vmatrix}}$

$5A + B = \large\mathsf{\begin{vmatrix}10&5\\15&10\end{vmatrix}} + \large\mathsf{\begin{vmatrix}1&5\\2&-2\end{vmatrix}} = \large\mathsf{\begin{vmatrix}11&10\\17&8\end{vmatrix}}$

Answer 2

Resposta:

Explicação passo-a-passo:

Temos que:

$5A = 5\left[\begin{array}{ccc}2&1\\3&2\end{array}\right]$

$5A = \left[\begin{array}{ccc}10&5\\15&10\end{array}\right]$

$5A + B = \left[\begin{array}{ccc}10&5\\15&10\end{array}\right] +\left[\begin{array}{ccc}1&5\\2&-2\end{array}\right]$

$5A + B = \left[\begin{array}{ccc}11&10\\17&8\end{array}\right]$