Question

5- Calcule o Determinante da matriz abaixo:

Answer 1

$\left[\begin{array}{ccc}1&5&-2\\8&3&0\\4&-1&2\end{array}\right]$  = -34

(1 * 3 * 2) + (5 * 0 * 4) +((-2) * 8 * (-1)) - (4 * 3 * (-2)) - ((-1) * 0 * 1) - ((-2) * 8 *5)

[6 + 0 + 16] - [(-24) - 0 - (-80)]

22 - [-24 + 80]

22 - 56 = -34