Results 1 to 3 of 3

Math Help - absolute value/calculus

  1. #1
    Senior Member
    Joined
    Jul 2006
    Posts
    364

    absolute value/calculus

    Here is the question I'm having trouble with. Apparently the answer is A.

    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    10
    Quote Originally Posted by scorpion007 View Post
    Here is the question I'm having trouble with. Apparently the answer is A.

    You need to find the derivative at x=k
    But, the trick is that this an absolute value function.
    The regular sine is negative in that interval
    So you need to find the derivative of,
    y=-\sin x
    y'=-\cos x
    At, k:
    -\cos k
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Senior Member
    Joined
    Jul 2006
    Posts
    364
    ah, thank you very much. That explains things.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 8
    Last Post: May 23rd 2010, 11:59 PM
  2. finding absolute maximum and absolute minimum
    Posted in the Calculus Forum
    Replies: 1
    Last Post: November 15th 2009, 05:22 PM
  3. Replies: 2
    Last Post: November 8th 2009, 02:52 PM
  4. Find the absolute maximum and absolute minimum
    Posted in the Calculus Forum
    Replies: 5
    Last Post: December 12th 2008, 10:46 AM
  5. Calculus Critical Values, Absolute Min, Max?
    Posted in the Calculus Forum
    Replies: 5
    Last Post: November 19th 2007, 09:54 PM

Search Tags


/mathhelpforum @mathhelpforum