1) 3^n+1(-3^2)^n 除以9^3n+1
2)2a^2a+1-6a^n+1除以a^2n-3a^n
幾條中三指數定律
2010-09-19 7:47 pm
回答 (1)
2010-09-19 8:55 pm
收錄日期: 2021-04-22 00:52:59
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100919000051KK00605