Results 1 to 4 of 4

Math Help - Infinite Surd Help

  1. #1
    Newbie
    Joined
    May 2009
    Posts
    2

    Infinite Surd Help

    Hi there, first time poster here.

    I'm having trouble with infinite surds.
    I understand that as n approches infinity an -an+1 approaches zero.
    I understand that the limit of the sequence is the exact value of the infinite surd.
    I also know how to solve the surd by setting it equal to x and using quadratics.

    But what I don't understand is how to connect any of it. I can't explain how to get from  an -an+1 to the exact value.

    In other words, I'm at point A and I know where point B is, I just don't know how to get there.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member
    Joined
    Apr 2009
    From
    Montréal
    Posts
    45
    I'll simply redirect you toward the following thread: http://www.mathhelpforum.com/math-he...nite-surd.html

    Hope this helps!
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    May 2009
    Posts
    2
    I appreciate the help, but I already knew about that method. What I don't understand is how I'm supposed to reach that method using only =0 as n approaches infinity.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by bookjunkie24 View Post
    I appreciate the help, but I already knew about that method. What I don't understand is how I'm supposed to reach that method using only =0 as n approaches infinity.
    The equation you're posting makes no sense: an - an = 0 ..... Please post the correct equation using appropriate notation.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. infinite surd problem
    Posted in the Algebra Forum
    Replies: 6
    Last Post: March 9th 2010, 04:32 AM
  2. infinite surd
    Posted in the Algebra Forum
    Replies: 1
    Last Post: November 26th 2008, 10:59 PM

Search Tags


/mathhelpforum @mathhelpforum