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How to solve this logarythmic inequality ?

  1. Dec 24, 2014 #1
    1. The problem statement, all variables and given/known data
    Here is the problem :
    https://www.dropbox.com/s/otzzne7wjyuqa5o/question.jpg?dl=0
    I've tried solving this inequality but alas,nothing...It's an exam question for my student,and for my great shame,I have no idea how to solve it :(
     
  2. jcsd
  3. Dec 24, 2014 #2
    What have you tried so far? I know it looks scary, but why don't you try using some of your laws of logarithms.
     
  4. Dec 24, 2014 #3

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    You might also want to use the fact that
    [tex]log_a(x)= \frac{log_b(x)}{log_b(a)}[/tex]
    to get the two logarithms to the same base.
     
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