Results 1 to 3 of 3

Math Help - trigonometry equation

  1. #1
    Super Member dhiab's Avatar
    Joined
    May 2009
    From
    ALGERIA
    Posts
    534
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor red_dog's Avatar
    Joined
    Jun 2007
    From
    Medgidia, Romania
    Posts
    1,245
    Thanks
    1
    \tan\left(2x-\frac{\pi}{6}\right)=\tan 3x\Rightarrow\frac{-\sin\left(x+\frac{\pi}{6}\right)}{\cos\left(2x-\frac{\pi}{6}\right)\cos 3x}=0

    \sin\left(x+\frac{\pi}{6}\right)=0\Rightarrow x+\frac{\pi}{6}=k\pi\Rightarrow x=k\pi-\frac{\pi}{6}, \ k\in\mathbf{Z}
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member dhiab's Avatar
    Joined
    May 2009
    From
    ALGERIA
    Posts
    534

    directly

    thank you, to pouver you go directly by using following expression:
    Tan (x) =Tan (y) am equivalent in: x=Y+ K PI
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Trigonometry equation 2
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: December 8th 2009, 11:06 PM
  2. trigonometry equation
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: November 4th 2008, 07:47 AM
  3. trigonometry equation
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: November 3rd 2008, 03:29 PM
  4. trigonometry equation
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: May 1st 2007, 05:20 AM
  5. trigonometry equation
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: April 15th 2007, 11:02 AM

Search Tags


/mathhelpforum @mathhelpforum