logX^4=log2.7x+1
我之後就做!
4logx=log2.7x+log10
4logx=log(2.7*10)
4logx=log27x
之後點做 我又做錯左d咩???
LOG的一題數
2006-12-05 5:12 am
回答 (1)
2006-12-05 5:21 am
✔ 最佳答案
log(x^4) = log (27x)Therefore,
x^4 = 27x
since x cannot be 0
Therefore
x^3 = 27
x = 3
收錄日期: 2021-04-30 22:18:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061204000051KK04150