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D=|10 3 2 4| =10*|1 3 2 4| = 10*|1 3 2 4| =10|1 3 2 4|
10 1 3 2 1 1 3 2 0 -2 1 -2 0 -2 1 -2
10 4 1 3 1 4 1 3 0 1 -1 -1 0 -1 0 -3
10 2 4 1 1 2 4 1 0 -1 2 -3 0 3 0 1
=10|1 3 2 4| =-10|1 2 3 4| =-10*1*1*ï¼-1ï¼*ï¼-8ï¼=-80
0 -2 1 -2 0 1 -2 -2
0 -1 0 -3 0 0 -1 -3
0 0 0 -8 0 0 0 -8
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