Determine whether the following equation is an identity.
(x-y)(y-z)(z-x)=xyz-x^2-y^2-z^2
f3 maths
2010-08-01 3:26 am
回答 (1)
2010-08-01 3:41 am
✔ 最佳答案
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By comparing, the given equation is not an identity.
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100731000051KK01284