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Logarithim once again

  1. Nov 15, 2012 #1
    Without using tables:

    1. Evaluate 2log10 + log10(1/2 + 1/3) + 1/3log27

    2log2 + log 1 - log2 + log1 - log3 + log3 = log2..

    This was my attempt but it's wrong . I think I went wrong somewhere here log10(1/2 + 1/3) but I can't find the error.
     
  2. jcsd
  3. Nov 15, 2012 #2

    SammyS

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    log(a + b) ≠ log(a) + log(b)


    What is (1/2) + (1/3) ?
     
  4. Nov 15, 2012 #3
    oh so it should be log(5/6) ?
     
  5. Nov 15, 2012 #4
    Oh yes I got it! I got 1. Thanks for pointing that out.
     
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