Question

Calcule o produto de A.2B
A= ( 1 2) B= ( 1 2)
(5 4) (5 4)

Answer 1

Resposta:

Leia abaixo

Explicação passo-a-passo:

$A = \large\mathsf{\begin{vmatrix}1&2\\5&4\end{vmatrix}}$

$B = \large\mathsf{\begin{vmatrix}1&2\\5&4\end{vmatrix}}$

$2B = \large\mathsf{\begin{vmatrix}2&4\\10&8\end{vmatrix}}$

$A2B = \large\mathsf{\begin{vmatrix}1&2\\5&4\end{vmatrix}}.\large\mathsf{\begin{vmatrix}2&4\\10&8\end{vmatrix}} = \large\mathsf{\begin{vmatrix}(2 + 20)&(4 + 16)\\(10+40)&(20+32)\end{vmatrix}} = \large\mathsf{\begin{vmatrix}22&20\\50&52\end{vmatrix}}$