Results 1 to 2 of 2

Math Help - find the formula for the function described..

  1. #1
    Newbie
    Joined
    Oct 2009
    Posts
    1

    find the formula for the function described..

    A function of the form y = a*sin(bt^2) whose first critical point for positive t occurs at t=1 and whose derivative is 3 when t = 2.

    I tried to take the first derivative ( 2abtcos(bt^2)) ,but I didn't know how to apply the point I was given..... can someone help me with this problem? thanks in advance
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    28
    Quote Originally Posted by reaperx6 View Post
    A function of the form y = a*sin(bt^2) whose first critical point for positive t occurs at t=1 and whose derivative is 3 when t = 2.

    I tried to take the first derivative ( 2abtcos(bt^2)) ,but I didn't know how to apply the point I was given..... can someone help me with this problem? thanks in advance
    You can use

     \frac{dy}{dt}= 2abt\cos(bt^2)

     3= 2ab(2)\cos(b(2)^2)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: November 25th 2010, 04:11 AM
  2. Cannot find a formula for sum
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: July 30th 2010, 03:15 AM
  3. How to find possible formula for a function
    Posted in the Pre-Calculus Forum
    Replies: 5
    Last Post: April 24th 2010, 06:19 PM
  4. find the formula for the function
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: August 4th 2009, 11:38 PM
  5. find a function formula
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: July 1st 2008, 06:51 PM

Search Tags


/mathhelpforum @mathhelpforum