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Homework Help: Convert to Log Function

  1. Oct 25, 2007 #1
    1. Convert to logarithmic function: e^3=0.0498



    3. ln(-3)=0.0166 is my guess
     
  2. jcsd
  3. Oct 25, 2007 #2
    you cannot take the ln of a negative number
     
  4. Oct 25, 2007 #3
    okay well I was wrong, could it be ln(3)=0.0166?
     
  5. Oct 25, 2007 #4
    where is .01666 coming from?
     
  6. Oct 25, 2007 #5
    i divided 0.0498 by 3. that is totally wrong though.
     
  7. Oct 25, 2007 #6
    yes.

    since it just asks you to convert to log form, just leave it

    [tex]e^{3}=0.0498[/tex]

    [tex]ln(e^{3})=ln(0.0498)[/tex]
     
  8. Oct 25, 2007 #7
    okay if the equation was e^-3=0.0498 would I just rewrite it as:
    ln(e^-3)=ln(0.0498) ? Also, does ln remain on the right side as well as the left?
     
  9. Oct 25, 2007 #8
    no they cancel each other out, i was just showing you the operation; sorry for the confusion.

    [tex]3=ln(0.0498)[/tex]
     
    Last edited: Oct 25, 2007
  10. Oct 25, 2007 #9

    Dick

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    Uh, you mean -3=ln(0.0498...), right?
     
  11. Oct 25, 2007 #10
    then it would be

    [tex]-3=ln(0.0498)[/tex]
     
  12. Oct 25, 2007 #11
    that's his 2nd question
     
  13. Oct 25, 2007 #12

    Dick

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    Well, ok, however you want to handle it. But seeing stuff like 3=ln(0.0498) makes me nervous.
     
  14. Oct 25, 2007 #13
    lol sorry!
     
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