Results 1 to 3 of 3

Math Help - I'm stuck on this series as well :(

  1. #1
    s3a
    s3a is offline
    Super Member
    Joined
    Nov 2008
    Posts
    597

    I'm stuck on this series as well :(

    Question:

    Determine:
    (a) whether is convergent.
    (b) whether is convergent.

    All I know to do is 10 * (5/5^n) and then I'm stuck and I'm not even sure that I am on the right track or if what I did is absolutely pointless.

    Any help would be greatly appreciated!
    Thanks in advance!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor harish21's Avatar
    Joined
    Feb 2010
    From
    Dirty South
    Posts
    1,036
    Thanks
    10
    Quote Originally Posted by s3a View Post
    Question:

    Determine:
    (a) whether is convergent.
    (b) whether is convergent.

    All I know to do is 10 * (5/5^n) and then I'm stuck and I'm not even sure that I am on the right track or if what I did is absolutely pointless.

    Any help would be greatly appreciated!
    Thanks in advance!
    You can use ratio test to check if the series converges. Try using Ratio test and show where you get stuck.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,916
    Thanks
    1762
    Awards
    1
    That is a simple geometric series with a=10~\&~r=\frac{1}{5}.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Stuck with a series problem!
    Posted in the Calculus Forum
    Replies: 3
    Last Post: April 7th 2011, 12:50 PM
  2. Getting stuck on series - can't develop Taylor series.
    Posted in the Differential Geometry Forum
    Replies: 6
    Last Post: October 5th 2010, 09:32 AM
  3. Stuck on evaluating a series
    Posted in the Calculus Forum
    Replies: 3
    Last Post: September 14th 2010, 10:24 PM
  4. GP Series Problem...stuck
    Posted in the Number Theory Forum
    Replies: 2
    Last Post: April 29th 2009, 10:22 AM
  5. Binomial series #2 stuck!
    Posted in the Calculus Forum
    Replies: 5
    Last Post: April 16th 2009, 11:09 PM

Search Tags


/mathhelpforum @mathhelpforum