help me!!!!!!tomorrow have the maths test!!!help!!!!!!!!!!!!

dimsum_1234

2006-10-31 6:19 am

化簡＿步驟
(u+v)-(v-w)+(w-u)
=
=
=

回答 (1)

jack

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

👍 0 👎 0

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

檢視 Wayback Machine 備份