Logarithm problem, thanks?
回答 (1)
2018-12-28 12:58 pm
✔ 最佳答案
Sol175=(5^2)*7
1.75=175/100=(5^2)*7/(10^2)=7/(2^2)
log1.75
=log[7/(2^2)]
=log7－log(2^2)
=log7－2log2
=d－2c
收錄日期: 2021-04-24 07:40:47
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https://hk.answers.yahoo.com/question/index?qid=20181228044227AAXkEGJ