1. 3xV
2.8y x 5x
3.c除de
4. 7除s除s
5.(ab)(bc)(ac)
6. (3t x 2u)除(4t x u)
7. h除f 份之 f x h x f
唔該幫幫我,,
收錄日期: 2021-04-13 14:25:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071112000051KK02546