Results 1 to 4 of 4

Math Help - Sinh and Skn

  1. #1
    Super Member dhiab's Avatar
    Joined
    May 2009
    From
    ALGERIA
    Posts
    534

    Sinh and Sin

    Solve in R :  \sin x = \sinh (2x - 3) - 1<br />
    Last edited by dhiab; August 29th 2009 at 08:57 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor red_dog's Avatar
    Joined
    Jun 2007
    From
    Medgidia, Romania
    Posts
    1,252
    Thanks
    5
    There is a solution between 2 and 3.
    Attached Thumbnails Attached Thumbnails Sinh and Skn-graph.jpg  
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by red_dog View Post
    There is a solution between 2 and 3.
    It is also unique as the derivative of \sinh(2x-3)-\sin(x)-1 is always positive.

    (root \approx 2.180)

    CB
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member pacman's Avatar
    Joined
    Jul 2009
    Posts
    448
    dhiab, we can rewrite it this way,

    .

    exponentially,
    ,



    by successive approximation, x = 2.18



    dhiab, is this what you need?

    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] | sinh (z) |^2 = sinh^2(x) + sin^2(y)
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: December 21st 2010, 02:23 PM
  2. Replies: 1
    Last Post: May 26th 2010, 12:30 PM
  3. sinh(x)
    Posted in the Calculus Forum
    Replies: 2
    Last Post: November 10th 2008, 04:16 PM
  4. sinh
    Posted in the Calculus Forum
    Replies: 2
    Last Post: June 19th 2008, 06:15 AM
  5. cosh and sinh
    Posted in the Calculus Forum
    Replies: 3
    Last Post: September 24th 2007, 08:47 PM

Search Tags


/mathhelpforum @mathhelpforum