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: Equivalent of tan(t) near Pi/2

  1. Nov 4, 2009 #1
    1. The problem statement, all variables and given/known data

    How can you get an equivalent of tan(t) in the neighborhood of Pi/2?

    2. Relevant equations

    the answer is 1/(Pi/2-t)

    3. The attempt at a solution

    I tryed to use a Taylor's expansion but the problem is that tan(Pi/2) does not exist.

    Thanks for your help!
  2. jcsd
  3. Nov 4, 2009 #2
    How about doing a Taylor expansion for tan^(-1) t instead?
  4. Nov 4, 2009 #3


    User Avatar
    Science Advisor
    Homework Helper

    cot(pi/2) exists. And tan(x)=1/cot(x).
  5. Nov 4, 2009 #4
    thanks guys
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook