更新1:
不是a-maths題,是maths!
a-maths!!!!!!
回答 (1)
2007-12-22 11:55 pm
✔ 最佳答案
9x / 3y = m / n 32x / 3y = m / n
log32x / log3y = logm / logn
2xlog3 / ylog3 = logm / logn
2x / y = logm / logn
2x = ylogm / logn
x = ylogm / 2logn
or x = logmy / logn2
參考: Myself~~~
收錄日期: 2021-04-23 20:33:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071222000051KK02644