化簡些問題
log7√5^2 / log0.2
中4數學.請列詳細步驟 thx..唔該help me.
2008-02-28 6:22 am
回答 (2)
2008-02-28 6:47 am
✔ 最佳答案
log7√5^2 / log0.2 = (log 7 + log√5^2) / (log 1 - log 5)
= - (log 7 + log 5) / log 5
= (log 35) / log 5
= -2.209
2008-02-29 1:19 am
log7√5^2 / log0.2
= (log 7 log√5^2) / (log 1 - log 5)
= (-log 7 - log 5) / log 5
= (-log 35) / log 5
= -2.209
= (log 7 log√5^2) / (log 1 - log 5)
= (-log 7 - log 5) / log 5
= (-log 35) / log 5
= -2.209
收錄日期: 2021-04-19 00:34:43
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