〔數學〕急急急一題炸
回答 (3)
2010-02-23 6:59 am
3^(x-1)=6
log(3^(x-1))=log6
(x-1)log3=log6
x-1=log6/log3
x=(log6/log3)+1
log(3^(x-1))=log6
(x-1)log3=log6
x-1=log6/log3
x=(log6/log3)+1
參考: my idea
2010-02-23 6:24 am
3^(x-1)=6
log(3^(x-1))=log6
(x-1)log3=log6
x-1=log6/log3
x=(log6/log3)+1
log(3^(x-1))=log6
(x-1)log3=log6
x-1=log6/log3
x=(log6/log3)+1
參考: 自己
收錄日期: 2021-04-13 17:06:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100222000051KK01827