Question

Sabendo que a matriz A 3x3 tem como lei i+2 e A matriz B 3x3 j+5. Qual BxA

Answer 1

aij: A3x3
a11 a12 a13
a21 a22 a23
a31 a32 a33
 $\left[\begin{array}{ccc}3&3&3\\4&4&4\\5&5&5\end{array}\right]$

aij:B3x3
b11 b12 b13
b21 b22 b23
b31 b32 b33
$\left[\begin{array}{ccc}6&7&8\\6&7&8\\6&7&8\end{array}\right]$

BxA=
$\left[\begin{array}{ccc}18+28+40&18+28+40&18+28+40\\18+28+40&18+28+40&18+28+40\\18+28+40&18+28+40&18+28+40\end{array}\right]$


$\left[\begin{array}{ccc}86&86&86\\86&86&86\\86&86&86\end{array}\right]$