Question

Ajuda.
Cálculos e respostas.​

Answer 1

Resposta:

Explicação passo-a-passo:

Precisamos fazer A x B, então:

$\left[\begin{array}{ccc}2&3&1\\-1&4&2\\\end{array}\right].\left[\begin{array}{cc}3&4&\\1&5&\\2&-6&\end{array}\right]=\left[\begin{array}{cc}2.3+3.1+1.2&2.4+3.5+1.(-6)\\-1.3+4.1+2.2&-1.4+4.5+2.(-6)\end{array}\right]=\left[\begin{array}{cc}11&17\\5&4\end{array}\right]$