Results 1 to 2 of 2

Math Help - Trig functions..Simplifying....

  1. #1
    Member
    Joined
    Aug 2007
    Posts
    188

    Trig functions..Simplifying....

    The equation given is right next to each number...all work under that is mine...I believe the first four should be correct, but I am having trouble from number 5-8...could someone please assist me?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Aug 2007
    From
    USA
    Posts
    3,110
    Thanks
    2
    5 & 6 are easily shown with the Pythagorean Identity.

    In 5, there is a preponderance of sin(x), so solve for \cos^{2}(x)\;=\;1\;-\;\sin^{2}(x) and substitute. You will be left with a bunch of sines that you can handle.

    In 6, there is a preponderance of cos(x), so solve for \sin^{2}(x)\;=\;1\;-\;\cos^{2}(x) and substitute. You will be left with a bunch of cosines that you can handle.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Simplifying Trig Functions
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: April 30th 2011, 01:13 PM
  2. Simplifying trig functions
    Posted in the Pre-Calculus Forum
    Replies: 8
    Last Post: March 23rd 2009, 06:46 PM
  3. Simplifying Trig Functions
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 25th 2009, 09:51 PM
  4. Simplifying Trig Functions
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: April 27th 2007, 04:23 PM
  5. simplifying inverse trig functions
    Posted in the Trigonometry Forum
    Replies: 9
    Last Post: March 18th 2007, 09:58 PM

Search Tags


/mathhelpforum @mathhelpforum