1. If b>1, x>0, and (2x)^(logb 2) - (3x)^(logb 3) = 0, find x.
2. Show 2loga + 2loga^2 + 2loga^3+ ... + 2loga^n = n(n+1)loga.
Challenging Log
2007-09-25 9:55 pm
回答 (1)
2007-09-25 10:12 pm
參考: My Maths knowledge
收錄日期: 2021-04-23 17:22:26
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https://hk.answers.yahoo.com/question/index?qid=20070925000051KK01309