计算行列式(3333,32333,33333,33343,33335)
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![计算行列式(3333,32333,33333,33343,33335)](/uploads/image/z/10155767-23-7.jpg?t=%E8%AE%A1%E7%AE%97%E8%A1%8C%E5%88%97%E5%BC%8F%283333%2C32333%2C33333%2C33343%2C33335%29)
计算行列式(3333,32333,33333,33343,33335)
计算行列式(3333,32333,33333,33343,33335)
计算行列式(3333,32333,33333,33343,33335)
r1-r3、r2-r3、r4-r3、r5-r3 【你那行列式最前还差个 《1 》 吧?】
D=|-2 0 0 0 0|
0 -1 0 0 0
3 3 3 3 3
0 0 0 1 0
0 0 0 0 2
c1-c3、c2-c3、c4-c3、c5-c3
=|-2 0 0 0 0|
0 -1 0 0 0
0 0 3 0 0
0 0 0 1 0
0 0 0 0 2
=(-2)(-1)*3*1*2
=12