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咩叫做"qraduatic identity" ar????
咩叫做"qraduatic identity" ar????urgent
2006-12-05 10:29 pm
回答 (1)
2006-12-05 10:41 pm
✔ 最佳答案
it's spelt quadratic identityIf a and b are real numbers, then
(a+b)^2 = a^2+2ab+b^2
收錄日期: 2021-04-12 23:48:01
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061205000051KK01498