Question

Efetue:
$\left[\begin{array}{ccc}1&0&0\\1&1&0\\0&1&1\end{array}\right]$ $\left[\begin{array}{ccc}2&2&1\\1&2&2\\2&1&2\end{array}\right]$

Answer 1

Você deve multiplicar a linha(horizontal) pela coluna(vertical).

$\left[\begin{array}{ccc} 1.2+0.1+0.2 & 1.2+2.0+1.0 & 1.1+2.0+2.0 \\ 1.2+1.1+2.0 & 1.2+1.2+0.1 & 1.1+1.2+0.2 \\ 0.2+1.1+1.2 & 0.2+1.2+1.1 & 0.1+1.2+1.2 \end{array}\right]$
↓
$\left[\begin{array}{ccc}2&2&1\\2+1&2+2&1+2\\1+2&2+1&2+2\end{array}\right]$]
↓
$\left[\begin{array}{ccc}2&2&1\\3&4&3\\3&3&4\end{array}\right]$