Results 1 to 11 of 11

Thread: Number of terms in a geometric sequence?

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Join Date
    Sep 2007
    Posts
    1

    Default Number of terms in a geometric sequence?

    Determine the number of terms for the following geometric sequence:

    a) 2, 4, 8,.........1024


    Full solution please.

  2. #2
    Join Date
    Jan 2008
    Posts
    1

    Post My introdution

    Hi all. Your site forums.freshershome.com is very suitable. I think I've found my constant comunication place
    Sorry if wrong branch

  3. #3
    Join Date
    Mar 2008
    Posts
    2

    Default

    The sequence is of relation ship

    2 ^ N where N = 1 to X
    So there for

    2 ^ X = 1024
    and thus X = 10

    Therefore there are 10 terms in the series.

    So far as I can remeber this in not the correct sequence notation, but the answer is correct, no?

  4. #4

    Default

    Cool...
    I'm weak in maths but there is always room for improvement..
    Job Board
    Career Tips Freshers Career Plan, Tips for CAT, MBA, Study Abroad Tips...
    Resume Tips Resume Tips For Freshers and Expe... Experts, Know how to build your resume for that very important job.

  5. #5
    Join Date
    Aug 2008
    Posts
    1

    Default

    2^1,2^2...............2^10
    so 1024 is 10th term
    therfore total 10 terms in the series

  6. #6
    Join Date
    Jan 2009
    Posts
    1

    Default

    2^1,2^2...............2^10
    so 1024 is 10th term
    therfore total 10 terms in the series

  7. #7
    Join Date
    Feb 2009
    Posts
    5

    Default

    Quote Originally Posted by Geelee View Post
    Determine the number of terms for the following geometric sequence:

    a) 2, 4, 8,.........1024


    Full solution please.
    here 1st term a=2;
    last term =1024;
    as we know 2 to the power 10 =1024; so total no of terms in the geometric series =10

  8. #8
    Join Date
    Apr 2009
    Posts
    3

    Default

    In the geometric Sequence ,
    First Term is 2. Second term = 4 (2 * 2=> 2 to power 2)
    Third term is 8(2*2*2 => 2 to power 3). From this above pattern Number of term is equal to power of 2.
    here the last term is 1024(2 to power10 )
    Therefore 1024 is the 10th term .
    Therefore the number of term in Geometric Sequence = 10

  9. #9
    Join Date
    May 2009
    Posts
    2

    Default

    The formula for Nth term of a G.P. series is
    T(N)=a*r^(N-1), where a= first term, r= common ratio, T(N)=last term
    => 1024=2*2^(N-1)
    => 2^(N-1)=512
    => 2^(N-1)=2^9
    => (N-1)=9
    => N=10.

  10. #10
    Join Date
    Jun 2009
    Posts
    18

    Default

    2 ^ N where N = 1 to X
    So there for

    2 ^ X = 1024
    and thus X = 10

    Therefore there are 10 terms in the series.

  11. #11

    Default

    hi
    2*2=4*2=8*2=16 last number is sereis is 512*2=1024 ten time of row is multiply by 2.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •