Results 1 to 2 of 2

Math Help - Double angle trigonometry

  1. #1
    Newbie
    Joined
    Mar 2013
    From
    somerset
    Posts
    6

    Unhappy Double angle trigonometry

    Hi guys, I am new to this forum and really need some help.
    I have been trying to complete a maths assignment for my college work but have come across a question that I am totally stuck on and my lecturer wont help me!!

    Can someone help me please?!?!

    The question is:

    Give the exact value for the following:

    2tan75°
    ______
    1-tan²75°


    If someone could please please help me..
    I need to know the working and each step that was taken to get to the final answer....

    Please explain

    Thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor ebaines's Avatar
    Joined
    Jun 2008
    From
    Illinois
    Posts
    1,113
    Thanks
    325

    Re: Double angle trigonometry

    Please don't double post questions. The answer is given here: Double angle trigonometry
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Trigonometry double angle question
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: November 8th 2012, 01:13 PM
  2. Replies: 2
    Last Post: March 26th 2010, 07:42 AM
  3. Simplify the Expression (Double-Angle or Half-Angle)
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: November 3rd 2009, 03:38 PM
  4. Finding angle/ Double angle formula
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: May 29th 2009, 07:43 AM
  5. Replies: 2
    Last Post: February 15th 2007, 10:16 PM

Search Tags


/mathhelpforum @mathhelpforum