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!

Homework Help: E^-ln(x) = 1/x?

  1. Sep 10, 2013 #1

    1s1

    User Avatar

    1. The problem statement, all variables and given/known data

    Is ##e^{-ln(x)}## equal to ##\frac{1}{x}## ?

    2. Relevant equations



    3. The attempt at a solution

    ##e^{-ln(x)} = e^{ln(x^{-1})} = e^{ln(\frac{1}{x})} = \frac{1}{x}## ?

    Thanks!
     
  2. jcsd
  3. Sep 10, 2013 #2

    Zondrina

    User Avatar
    Homework Helper

    Yes that is correct. It's a very common mistake that I see to not apply the log rules before eliminating ##e## and ##ln##.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted