Results 1 to 3 of 3

Math Help - Help With Trignometric Limits

  1. #1
    Junior Member
    Joined
    Oct 2008
    Posts
    29

    Help With Trignometric Limits

    How do you solve the limit: lim x--> pi/2 (2x -pi)/(cos x)?
    I end up with 0 over 0, which means the function can be factored, but how do I factor it?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Calculus26's Avatar
    Joined
    Mar 2009
    From
    Florida
    Posts
    1,271
    when you get 0/0 with a rational function it can be factored thats not

    true when you have trig functions in the mix.

    See attachment for solution

    I just noticed in the attachment I mistakenly put 2x- pi = 2t -pi

    it should read 2x = 2t -pi
    Attached Thumbnails Attached Thumbnails Help With Trignometric Limits-limit.jpg  
    Last edited by Calculus26; September 27th 2009 at 11:58 PM.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor Calculus26's Avatar
    Joined
    Mar 2009
    From
    Florida
    Posts
    1,271
    See attachment

    in previous attachment I mistakenly put 2x- pi = 2t -pi

    it should read 2x = 2t -pi
    Attached Thumbnails Attached Thumbnails Help With Trignometric Limits-limit.jpg  
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. trignometric identities
    Posted in the Trigonometry Forum
    Replies: 6
    Last Post: November 24th 2011, 06:56 AM
  2. trignometric problem
    Posted in the Trigonometry Forum
    Replies: 6
    Last Post: April 17th 2010, 07:49 AM
  3. Trignometric Integrals
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 6th 2010, 06:11 PM
  4. trignometric solution
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: March 27th 2009, 05:26 PM
  5. Limits of Trignometric Functions
    Posted in the Calculus Forum
    Replies: 7
    Last Post: June 5th 2008, 07:57 PM

Search Tags


/mathhelpforum @mathhelpforum