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 the sum of this series

  1. Feb 1, 2009 #1
    1. The problem statement, all variables and given/known data

    Find the sum of the series s(x) = 1 +cos(x)+ (cos2x)/2!+(cos3x)/3!...
    2. Relevant equations



    3. The attempt at a solution
    i'm miserable at series. help?
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Feb 2, 2009 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Hi thanksie037! :smile:

    Hint: this is the real part of what complex series? :wink:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?