Question

7.Calcule A× B , sendo
A=[1 3 ] e B=[0 -2]
A=[2 -4 ] e B=[3 1]

Answer 1

Resposta:

-6 e 2

Explicação passo a passo:

$\left[\begin{array}{ccc}1&3\end{array}\right] *\left[\begin{array}{ccc}0&-2\end{array}\right] \\=1*0-3(-2)\\=-6$

$\left[\begin{array}{ccc}2&-4\end{array}\right] * \left[\begin{array}{ccc}3&1\end{array}\right] \\=2*3-(-4)*1\\=6-4\\=2$