Results 1 to 4 of 4

Math Help - Trig help

  1. #1
    Newbie
    Joined
    Oct 2012
    From
    England
    Posts
    22

    Trig help

    Find all of the solutions of the equation



    where

    Answers: 32.18315422,57.81684578,212.1831542,237.8168458

    Need to answer a similar question on this tonight for an assesment, but have no idea how to do it, having only dealt with single term trig equations also without powers. Any help would be appreciated

    Thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor MarkFL's Avatar
    Joined
    Dec 2011
    From
    St. Augustine, FL.
    Posts
    1,988
    Thanks
    734

    Re: Trig help

    Hint: treat it like a quadratic equation. Remember to use the identity

    \sin(180^{\circ}-x)=\sin(x)

    to get all valid roots.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Oct 2012
    From
    England
    Posts
    22

    Re: Trig help

    Thanks for posting, what will i do with the 5.232 if i try to factorise it, seems it would make it quite messy
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor MarkFL's Avatar
    Joined
    Dec 2011
    From
    St. Augustine, FL.
    Posts
    1,988
    Thanks
    734

    Re: Trig help

    Use the quadratic formula.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Compute Trig Function Values, Solve Trig Equation
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: September 8th 2011, 08:00 PM
  2. Replies: 7
    Last Post: April 15th 2010, 09:12 PM
  3. Replies: 6
    Last Post: November 20th 2009, 05:27 PM
  4. Replies: 1
    Last Post: July 24th 2009, 03:29 AM
  5. Replies: 2
    Last Post: April 21st 2006, 04:04 PM

Search Tags


/mathhelpforum @mathhelpforum