Prove that
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please answer the question step by step!
Determinants x1
2011-05-29 2:39 am
回答 (2)
2011-05-29 2:44 am
✔ 最佳答案
Add row 1 to row 3, extract the common factor a + b + cNow you can use the formula of 3 * 3 determinent to get the final result.
Hope it helps
2011-06-01 7:20 am
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收錄日期: 2021-04-26 14:43:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110528000051KK00968