问题描述:
数学题(行列式)
A=0 0 0 a
b 0 0 0
0 0 c 0
0 d 0 0
A=0 0 0 a
b 0 0 0
0 0 c 0
0 d 0 0 PS:感激不尽!
A=0 0 0 a
b 0 0 0
0 0 c 0
0 d 0 0
A=0 0 0 a
b 0 0 0
0 0 c 0
0 d 0 0 PS:感激不尽!
问题解答:
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