Results 1 to 2 of 2

Math Help - evaluate 23pi/6

  1. #1
    Newbie
    Joined
    Jan 2010
    Posts
    9

    evaluate 23pi/6

    Don't use a calculator and use the rations in the reference triangle.
    please explain in detail how you got it!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,417
    Thanks
    1329
    Quote Originally Posted by thisisamazing View Post
    Don't use a calculator and use the rations in the reference triangle.
    please explain in detail how you got it!
    Do you understand that a "reference triangle" has angles between 0 and \pi/2? Also, that sine and cosine are periodic with period [itex]2\pi[/itex]. Once you realize that, it is just elementary arithmetic. What is 23/6 as a mixed fraction?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. evaluate
    Posted in the Algebra Forum
    Replies: 4
    Last Post: April 18th 2010, 12:16 PM
  2. evaluate
    Posted in the Calculus Forum
    Replies: 3
    Last Post: November 21st 2009, 03:26 AM
  3. Evaluate
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: January 26th 2009, 04:56 AM
  4. how do i evaluate...
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: September 4th 2008, 10:55 PM
  5. Please evaluate
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: December 14th 2007, 04:36 PM

Search Tags


/mathhelpforum @mathhelpforum