行列式d=120000300000001002000100000010002001的值
d= 120000 300000 001002 000100 000010 002001的值
1 2 0 0 0 0 1 2 0 0 0 0
3 0 0 0 0 0 0 -6 0 0 0 0
0 0 1 0 0 2 0 0 1 0 0 2
0 0 0 1 0 0 0 0 0 1 0 0
0 0 0 0 1 0 0 0 0 0 1 0
0 0 2 0 0 1 0 0 0 0 0 -3
D=(-6)(-3)=18
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