- #1

- 422

- 4

## Homework Statement

For the following series, write formulas for the sequences a

_{n},

S

_{n}and R

_{n}, and find the limits of the sequences as n-->infinity

## Homework Equations

N/A

## The Attempt at a Solution

a

_{n}is easy, =

the limit of which does not exist.

This is where I get stuck, I know S

_{n}=

But I don't know how to come up with an actual formula for the sum. Furthermore, I'm not sure I even know what R

_{n}is, a Reimann sum? How do I go about doing that? I can't find anything in my notes.