Question

Observando a matriz abaixo, determine 5.A​

Answer 1

Explicação passo-a-passo:

Temos que:

$\sf 5\cdot A=5\cdot\Big[\begin{array}{ccc} \sf 0 & \sf -1 & \sf 2 \\ \sf 5 & \sf 0 & \sf 6 \end{array}\Big]$

$\sf 5\cdot A=\Big[\begin{array}{ccc} \sf 5\cdot0 & \sf 5\cdot(-1) & \sf 5\cdot2 \\ \sf 5\cdot5 & \sf 5\cdot0 & \sf 5\cdot6 \end{array}\Big]$

$\sf \red{5\cdot A=\Big[\begin{array}{ccc} \sf 0 & \sf -5 & \sf 10 \\ \sf 25 & \sf 0 & \sf 30 \end{array}\Big]}$

Opção d