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Math Help - Log equation

  1. #1
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    Log equation

    I have the following Log Equation that maybe someone could help me with:

    loga = log1 - 1.73 log4.3

    The answer is 0.087 but how do you get this answer. I have tried putting this into my calculator several times but just cant get the right answer.

    Thanks
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  2. #2
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    e^(i*pi)'s Avatar
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    Recall that \log(1) = 0, that a\log(k) = \log(k^a) and that if two logs have the same base their arguments must be equal \log_a(b) = \log_a(c) \implies b=c
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  3. #3
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    Hi alamb,
    log a = log 1 -1.73 log 4.3
    log 1=0
    log a = log 4.3^-1.73 a= 1/4.3^1.73= 0.08019


    bjh
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