點做呢條等比?
通項:1,4,9,16........................
解釋埋唔該><多謝曬
更新1:
唔好意思..我打錯字~係等差
唔好意思..我打錯字~係等差
收錄日期: 2021-04-23 00:11:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061029000051KK00423