數學 一條對數問題

2015-04-08 5:40 pm
1. 3logx^2/logx^2+3logx

請列步驟,謝謝

回答 (2)

2015-04-08 7:29 pm
✔ 最佳答案
3log(x^2)/[log(x^2)+3logx]
Sol
logx=>x>0
3log(x^2)/[log(x^2)+3logx]
=3*2logx/(2logx+3logx)
=6/5
2015-04-09 3:31 am
To Kwok Ho:
以下是有可能是你想問的對數問題,因為是你沒有加上括號

可能一:
[(3 log x^2)/(log x^2)]+3 log x
=3+3 log x

可能二:
3 log x^[2/ log (x^2)] +3 log x
=[(6 log x)/(2 log x)]+3 log x
=3+3 log x

可能三:
3 log x^{1/(log x^[2+3 log x)]}
=(3 log x)/[(2+3 log x)(log x)]
=3/(2+3 log x)

可能四:
(3 log x^2)/[(log x^2)+3(log x)]
=(6 log x)/(5 log x)
=6/5


收錄日期: 2021-04-15 19:08:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150408000051KK00023

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