Results 1 to 3 of 3

Math Help - Riemann Sum Help

  1. #1
    Newbie
    Joined
    Apr 2009
    Posts
    4

    Smile Riemann Sum Help

    Hello, if someone could please help me with this problem, I'd really appreciate it. Here's a screenshot, to save the complicated typing:

    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Sep 2006
    Posts
    77
    Here \Delta x = \frac{2}{n}
    and x_i = \frac{2i}{n} so each x_i increases by \Delta x as i increases by 1.

    So R_n = \Sigma_{i=1}^n f(\frac{2i}{n})\frac{2}{n}<br />
=\frac{2}{n} \Sigma_{i=1}^n [(\frac{2i}{n})^2 /2 - 8]

    Is that enough of a start?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Apr 2009
    Posts
    4
    Quote Originally Posted by Thomas154321 View Post
    Here \Delta x = \frac{2}{n}
    and x_i = \frac{2i}{n} so each x_i increases by \Delta x as i increases by 1.

    So R_n = \Sigma_{i=1}^n f(\frac{2i}{n})\frac{2}{n}<br />
=\frac{2}{n} \Sigma_{i=1}^n [(\frac{2i}{n})^2 /2 - 8]

    Is that enough of a start?
    Yes, thank you, that did help.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: January 16th 2010, 03:31 AM
  2. Riemann Sum
    Posted in the Calculus Forum
    Replies: 6
    Last Post: December 8th 2008, 06:10 AM
  3. Riemann sum
    Posted in the Calculus Forum
    Replies: 3
    Last Post: December 5th 2008, 02:27 PM
  4. Replies: 6
    Last Post: August 4th 2007, 10:48 AM
  5. Riemann Sums and Riemann Integrals
    Posted in the Calculus Forum
    Replies: 1
    Last Post: October 1st 2006, 02:08 PM

Search Tags


/mathhelpforum @mathhelpforum