整數指數定律 化簡以下條式 急急急急急!?
回答 (2)
2015-10-19 4:17 pm
✔ 最佳答案
[a^(n+4) - a^(3n)] / [a^(3n+3) - a^(n+7)]=[a^(n+4) - a^(3n)] / (a^3)[a^(3n) - a^(n+4)]
= -1 /a^3
2015-10-21 3:36 am
[a^(n+4) - a^(3n)] / [a^(3n+3) - a^(n+7)]
=[a^(n+4) - a^(3n)] / (a^3)[a^(3n) - a^(n+4)]
= -1 /a^3
=[a^(n+4) - a^(3n)] / (a^3)[a^(3n) - a^(n+4)]
= -1 /a^3
收錄日期: 2021-04-18 13:59:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20151019023210AAp0zbp