化簡:
9^n+1 - 6 * 3^2n-1 / 3^n-3
=?
我想要步驟^^ thank.
(x+y/2)^2 * (x^2-y^2)^-3 * (3/x-y)^-2
=?
math f.3
2011-09-25 9:27 am
回答 (1)
2011-09-25 11:55 pm
收錄日期: 2021-04-23 20:44:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110925000051KK00088