數學題[要步驟]

🎓 學業台小學及中學教育

2008-01-10 3:17 am

[2^2n * 9^n ] / 3^n

要步驟..

更新1:

.答案係=12^n .. 可唔可以做埋=12^n 係咪出黎..

回答 (2)

2008-01-11 12:12 pm

✔ 最佳答案

[2^2n * 9^n ] / 3^n

= [(2^2)^n * 9^n] / 3^n

= (4^n * 9^n) / 3^n

= [(4*9)^n] / 3^n

= 36^n / 3^n

= (36/3)^n

= 12^n

參考: 自己

👍 0 👎 0

2008-01-10 3:23 am

= (2^2n * 3^2n) / 3^n
= 2^2n * 3^2n-n
= 2^2n * 3^n

參考: me

👍 0 👎 0

收錄日期: 2021-05-01 15:59:29
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080109000051KK03119

檢視 Wayback Machine 備份