更新1:
use law of integral indices!!!
maths. question?
回答 (2)
2016-09-14 4:03 pm
(6 ^ -2/3^ -5)^3 ÷(16/81)^ -2
=(27/4)^3÷(6561/256)
=(19683/64)÷(6561/256)
=12
=(27/4)^3÷(6561/256)
=(19683/64)÷(6561/256)
=12
2016-09-08 3:36 am
0
收錄日期: 2021-04-18 15:33:07
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160906031838AA8vWW5