r2、r3交換
-|a000|
0c00
00b0
000d
=-abcd
a 0 0 0;0 0 b 0;0 c 0 0;0 0 0 d四階行列式
a 0 0 0;0 0 b 0;0 c 0 0;0 0 0 d四階行列式
數(shù)學(xué)人氣:674 ℃時(shí)間:2020-06-11 10:38:31
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