1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Logarithmic Equation - Pretty Confused

  1. Oct 18, 2007 #1
    Last edited: Oct 18, 2007
  2. jcsd
  3. Oct 18, 2007 #2


    User Avatar
    Staff Emeritus
    Science Advisor

    Well, you've been given a hint. What are the "change of base" formulae?
  4. Oct 18, 2007 #3
    lol I don't know, I tried looking in my textbook and I couldn't find anything!!
  5. Oct 18, 2007 #4
  6. Oct 18, 2007 #5
    i dont understand how i got the first one wrong, isnt it supposed to be r/2t
  7. Oct 18, 2007 #6
    Change [tex]log_{16}17[/tex] to base 4.
  8. Oct 18, 2007 #7
    okay the first one that i asked u guys, the answer is s/2

    apparently i thought i got the last one right, but it was wrong, i put s(6^t/2)

    but it was s+.5, anybody kno why?!?
  9. Oct 19, 2007 #8


    User Avatar
    Staff Emeritus
    Science Advisor

    Have you looked at the change of base formula provided in the link above? For the first question, follow the hint by Feldoh, and use the change of base formula; so, [tex]\log_{16} 17=\frac{\log_4 17}{\log_4 16}[/tex]. Can you continue?

    Incidentally, you should post in the homework forums in future.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Logarithmic Equation - Pretty Confused
  1. Logarithmic Equation (Replies: 9)

  2. Logarithmic equation (Replies: 15)

  3. Logarithmic equation (Replies: 3)