Results 1 to 2 of 2

Math Help - Trigonometric Identity

  1. #1
    Newbie
    Joined
    Jun 2012
    From
    Canada
    Posts
    1

    Trigonometric Identity

    I really need help with proving this equation:

    sec2θ = (sec^2θ)/(2-sec^2θ)

    Help please !
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Oct 2009
    Posts
    5,536
    Thanks
    778

    Re: Trigonometric Identity

    Express sec through cos and use the fact that cos(2x) = 2cos2x - 1.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Trigonometric Identity
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: November 12th 2011, 01:34 AM
  2. Using Trigonometric Identity
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: September 7th 2010, 03:21 AM
  3. Trigonometric identity
    Posted in the Trigonometry Forum
    Replies: 4
    Last Post: December 15th 2009, 01:04 PM
  4. Trigonometric Identity
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: August 13th 2009, 05:12 AM
  5. trigonometric identity
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: May 3rd 2009, 05:35 PM

Search Tags


/mathhelpforum @mathhelpforum