Results 1 to 4 of 4

Thread: Derivative

  1. November 9th 2009, 10:24 PM #1
    jzellt
    jzellt is offline
    Super Member
    Joined
    Feb 2008
    Posts
    535

    Derivative

    Calculate the derivative of (xsina + cosa)(xcosa - sina)
    Follow Math Help Forum on Facebook and Google+
  2. November 9th 2009, 10:25 PM #2
    Debsta
    Debsta is offline
    Senior Member
    Joined
    Oct 2009
    From
    Brisbane
    Posts
    311
    Thanks
    2
    with respect to what?
    Follow Math Help Forum on Facebook and Google+
  3. November 9th 2009, 10:40 PM #3
    jzellt
    jzellt is offline
    Super Member
    Joined
    Feb 2008
    Posts
    535
    Sorry. It actually doesn;t say in my assignment...I would guess with respect to x.
    Follow Math Help Forum on Facebook and Google+
  4. November 9th 2009, 10:45 PM #4
    Debsta
    Debsta is offline
    Senior Member
    Joined
    Oct 2009
    From
    Brisbane
    Posts
    311
    Thanks
    2
    Expand it out and you'll get a quadratic equation in x. Treat the a's as constants.
    Follow Math Help Forum on Facebook and Google+
« Question - Power/taylor/MacLaurin series | Applied max and min problem »

Similar Math Help Forum Discussions

  1. contuous weak derivative $\Rightarrow$ classic derivative ?
    Posted in the Differential Geometry Forum
    Replies: 2
    Last Post: April 22nd 2011, 02:37 AM
  2. Expanding a time derivative in terms of other variables /// Material derivative
    Posted in the Calculus Forum
    Replies: 0
    Last Post: January 24th 2011, 11:40 AM
  3. derivative of 1/[sqrt[x]: proving with derivative definition
    Posted in the Calculus Forum
    Replies: 2
    Last Post: November 6th 2009, 02:51 PM
  4. Derivative of definate intagral / second derivative? idk.
    Posted in the Calculus Forum
    Replies: 1
    Last Post: January 7th 2009, 01:59 PM
  5. Total Derivative vs. Directional Derivative
    Posted in the Advanced Math Topics Forum
    Replies: 5
    Last Post: May 30th 2008, 08:42 AM

Search Tags


/mathhelpforum @mathhelpforum