1. Not finding help here? Sign up for a free 30min 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!

Finding formula for the inverse of a function

  1. Oct 11, 2012 #1
    1. The problem statement, all variables and given/known data

    f(x)=e^x^2
    f^(-1)(x)=?


    2. The attempt at a solution

    i reversed x and y so i got x=e^y^2

    ln both sides to get

    lnx=y^2

    so (ln(y))^(1/2)

    what am i doing wrong?
     
  2. jcsd
  3. Oct 11, 2012 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    I'll just tidy up your notation, tell me if I mess it up:
    well that last line does not follow from the one before it does it? You are trying to find y(x) remember.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Finding formula for the inverse of a function
Loading...