Ask a New Question
Menu

Suppose that the nth partial sum of the series

∞
Σan is Sn = (5n-2)/(5n+2)
n=1  

Find a3. I have tried plugging in n = 3 and solving Sn but that is incorrect. I believe something is wrong with my approach and I would be happy to get some guidance.

1 answer

S3-S2 = term 3

S3 = 13/17
S2 = 8/12

maybe 13/17 - 8/12 ??? about .098
Similar Questions
  1. Suppose that the nth partial sum of the series   ∞Σn=1 an   is  sn =   5n − 2 5n + 2  
    1. answers icon 1 answer
  2. Suppose that the nth partial sum of the series ∞Σan is Sn = (5n-2)/(5n+2) n=1 Find a3. I have tried plugging in n = 3 and
    1. answers icon 0 answers
  3. Find the indicated partial sum of the series.infinity E 3(1/2)^i i=1 third partial sum
    1. answers icon 0 answers
    1. answers icon 0 answers
more similar questions