(2^2n x 3^4n)/(18^n) = ?
回答 (2)
2008-07-19 8:40 am
✔ 最佳答案
(2^2n x 9^2n) / 18^n = (2 x 9)^2n / 18^n = 18^2n / 18^n = 18^(2n - n)= 18^n
2008-07-19 8:30 am
收錄日期: 2021-04-13 15:50:17
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https://hk.answers.yahoo.com/question/index?qid=20080718000051KK03294