Results 1 to 2 of 2

Math Help - Please help me with this Chain Rule and Cosine theorem problem

  1. #1
    Newbie
    Joined
    May 2012
    From
    Edmonton
    Posts
    1

    Angry Please help me with this Chain Rule and Cosine theorem problem

    Hi All,

    I have the next problem to solve and I am trying to solve it for 2 days with no correct result. I used Chain Rule and I got:

    Please help me with this Chain Rule and Cosine theorem problem-fff.jpgbut the answer is still not correct.

    Please someone if can see let me know where is my mistake

    Thank you
    Attached Thumbnails Attached Thumbnails Please help me with this Chain Rule and Cosine theorem problem-qqq.jpg  
    Last edited by Array; May 27th 2012 at 10:19 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,894
    Thanks
    691

    Re: Please help me with this Chain Rule and Cosine theorem problem

    note that \frac{df}{dt} < 0 because the distance between the two is decreasing.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Somewhat basic Cosine rule problem. Help appreciated
    Posted in the Trigonometry Forum
    Replies: 5
    Last Post: March 29th 2012, 11:17 AM
  2. Applied cosine rule problem.
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: February 7th 2010, 04:17 AM
  3. problem using sine and cosine rule
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: November 28th 2009, 12:49 AM
  4. Chain Rule Problem
    Posted in the Calculus Forum
    Replies: 3
    Last Post: March 25th 2009, 01:47 PM
  5. chain rule problem
    Posted in the Calculus Forum
    Replies: 0
    Last Post: October 26th 2008, 08:42 AM

Search Tags


/mathhelpforum @mathhelpforum