化簡＿步驟
(u+v)-(v-w)+(w-u)
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help me!!!!!!tomorrow have the maths test!!!help!!!!!!!!!!!!
2006-10-31 6:19 am
回答 (1)
2006-10-31 6:26 am
✔ 最佳答案
(u+v)-(v-w)+(w-u) =u + v - v + w + w - u = ……..(- - w = + w : 負負得正)
2w
收錄日期: 2021-04-12 18:09:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061030000051KK06273