Prove determinant of
b+c c+a a+b
b1+c1 c1+a1 a1+b1
b2+c2 c2+a2 a2+b2
equals to determinant of
2a 2b 2c
a1 b1 c1
a2 b2 c2
Matrix
2013-11-22 9:41 pm
回答 (1)
2013-11-23 3:24 am
收錄日期: 2021-04-13 19:49:45
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https://hk.answers.yahoo.com/question/index?qid=20131122000051KK00060