Question

construía a matriz B =(bij) do tipo 2×3 sendo bij = 3i-j​

Answer 1

Resposta:

$B=\left[\begin{array}{ccc}2&1&0\\5&4&3\end{array}\right]$

Explicação passo-a-passo:

Cada elemento bij = 3i-j

$B=\left[\begin{array}{ccc}b_1_1&b_1_2&b_1_3\\b_2_1&b_2_2&b_2_3\end{array}\right] \\\\B=\left[\begin{array}{ccc}3-1&3-2&3-3\\3*2-1&3*2-2&3*2-3\end{array}\right] \\\\B=\left[\begin{array}{ccc}2&1&0\\5&4&3\end{array}\right]$