Does the series converge if Sn = 5 - 1/n?

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 2K views
KTiaam
Messages
53
Reaction score
1

Homework Statement



The nth partial sum of the series

Ʃ an
n=1


is given Sn = 5-1/n


Determine weather the series is convergent or divergent



The Attempt at a Solution



Looked in my book on how to do this one.
couldn't find anything on it.

What i was thinking was find the sum of all n's and finding a pattern and use that as an
however it didnt work, so I am stuck.
 
Physics news on Phys.org
KTiaam said:

Homework Statement



The nth partial sum of the series

Ʃ an
n=1


is given Sn = 5-1/n


Determine weather the series is convergent or divergent



The Attempt at a Solution



Looked in my book on how to do this one.
couldn't find anything on it.

What i was thinking was find the sum of all n's and finding a pattern and use that as an
however it didnt work, so I am stuck.

The sum of the series is DEFINED to be the limit of the partial sums. There's not much else to know. What is it?