Results 1 to 2 of 2

Math Help - Differential Calculus

  1. #1
    Newbie
    Joined
    Nov 2009
    Posts
    1

    Differential Calculus

    Hey guys, I need an answer to this by tomorrow. I need to know the answer to this question and the working out of it.

    Thanks in advance


    (a) Find dy/dx if y = 5x^-1/4

    (b) (i) Find the equation of the tangent to the curve

    y = x^2 - 5x + 7

    at the point (1,3)

    (ii) Hence find the area of the triangle formed by this tangent, the x axis and the y axis.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member
    Joined
    Feb 2008
    Posts
    383
    you duno how to do the first one?

    bi) use dy/dx to find the tangent then sub x=1,y=3 into the equation to find the equation or c of the y=mx+c.


    , n is any number.
    Last edited by BabyMilo; November 19th 2009 at 07:56 AM.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. HELP: Differential Calculus
    Posted in the Calculus Forum
    Replies: 5
    Last Post: July 17th 2010, 02:36 PM
  2. Differential calculus
    Posted in the Calculus Forum
    Replies: 1
    Last Post: April 10th 2010, 08:09 PM
  3. HELP in differential calculus
    Posted in the Calculus Forum
    Replies: 2
    Last Post: April 5th 2009, 03:32 AM
  4. Differential calculus?
    Posted in the Calculus Forum
    Replies: 6
    Last Post: June 30th 2008, 08:58 AM
  5. differential calculus
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 16th 2008, 02:54 PM

Search Tags


/mathhelpforum @mathhelpforum