问题描述:
用降阶法计算行列式.
-a1 a1 0 ...0 0
0 -a2 a2 ...0 0
.
0 0 0 ...-an an
1 1 1 ...1 1
-a1 a1 0 ...0 0
0 -a2 a2 ...0 0
.
0 0 0 ...-an an
1 1 1 ...1 1
问题解答:
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