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Homework Help: Logarithm question

  1. Jul 22, 2008 #1
    i am student of ladoke akitola university of technology ogbomosho oyo state Nigeria . help me on this question log^18-log^10=19
     
  2. jcsd
  3. Jul 22, 2008 #2

    HallsofIvy

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    I don't see a question here! What is the question?

    Also what does "log^18" mean? I that just log(18)? And is that common log (base 10) or natural log (base e)? Or is the problem to find base a such that loga(18)- loga(10)= 19?

    If that is the case, you can simplify by using the fact that loga(18)- loga(10)= loga(18/10)= loga(9/5) and then you are trying to find a such that a19= 9/5.
     
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