Respostas

2013-06-16T17:55:13-03:00

|4 -1 0|4 -1|

|5  7 6|5   7| = 4x7x3+ (-1)x6x2+ 0x5x1 - 0x7x2- 4x6x1-(-1)x5x3

|2  1 3|2   1| = 84-12+0-0-24+15 = 84+15-12-24= 99-36= 63