Question

calcule o valor do determinante : | 3 0 -2 | | 5 4 -3 | | 6 -8 6 |

Answer 1

| 3 0 -2 | 3 0
| 5 4 -3 | 5 4
| 6-8  6 | 6-8

+48 -72 +0 +72 -0 +80 = 0
+128

D= 128/2
D= 64