Results 1 to 2 of 2

Math Help - Power Series Help Please

  1. #1
    NotaWiz
    Guest

    Power Series Help Please

    I need to find the power series representation for f(x)= x/(1-2x). I cant seem to figure it out!Any help would be great
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by NotaWiz View Post
    I need to find the power series representation for f(x)= x/(1-2x). I cant seem to figure it out!Any help would be great
    recall that \frac 1{1 - x} = \sum_0^{\infty} x^n for |x|< 1

    thus, \frac x{1 - 2x} = \sum_0^{\infty} x \cdot (2x)^n for |x| < \frac 12

    now simplify
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: September 29th 2010, 07:11 AM
  2. Replies: 0
    Last Post: January 26th 2010, 09:06 AM
  3. Formal power series & Taylor series
    Posted in the Differential Geometry Forum
    Replies: 2
    Last Post: April 19th 2009, 10:01 AM
  4. Multiplying power series - Maclaurin series
    Posted in the Calculus Forum
    Replies: 4
    Last Post: March 8th 2009, 12:24 AM
  5. Replies: 10
    Last Post: April 18th 2008, 11:35 PM

Search Tags


/mathhelpforum @mathhelpforum