Mathematics
Undergraduate
Resolved
行列式を因数分解する問題なんですが、
ab-bcがc(a-c)になるのはなぜでしょうか?
1a
be
1
a
be
-1
C
0b-a c(a-6)|= (a-b)(c-a)
1
16 ca
ーb
1c ab
0c-a c(a-c)
= (a-b)(c-a)(b-c)
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やっぱりそうですよね
ありがとうございます!