计算行列式的值
|1312|
|1534|
|041-1|
|-513-6|
|1 3 1 2| |1 5 3 4| |0 4 1 -1| |-5 1 3 -6| = |1 3 1 2| |0 2 2 2| |0 4 1 -1| |0 16 8 4| =8 |1 1 1| |4 1 -1| |4 2 1| =8 |1 1 1| |0 -3 -5| |0 -2 -3| =8×(9-10)=-8
计算行列式的值
|1312|
|1534|
|041-1|
|-513-6|
|1 3 1 2| |1 5 3 4| |0 4 1 -1| |-5 1 3 -6| = |1 3 1 2| |0 2 2 2| |0 4 1 -1| |0 16 8 4| =8 |1 1 1| |4 1 -1| |4 2 1| =8 |1 1 1| |0 -3 -5| |0 -2 -3| =8×(9-10)=-8