Question

sendo a matriz A 1 3 2 -2 5 4 3 0 1 determine o determinante da mesma

Answer 1

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

Pelo método de sarrus: +a11×a22×a33+a12×a23×a31+a13×a21×a32−a13×a22×a31−a11×a23×a32−a12×a21×a33


(1×5×1)+(3×4×3)+(2×−2×0)−(3×5×2)−(0×4×1)−(1×−2×3) = 17

Determinante = 17