- #1

tyneoh

- 24

- 0

## Homework Statement

Let v

_{1}, v

_{2}, v

_{3}be a sequence and let

u

_{n}=nv

_{n}-(n+1)v

_{n+1}

for n= 1,2,3... find [itex]\sumu

_{n}[/itex] from n=1 to N.

## Homework Equations

## The Attempt at a Solution

Began with method of differences and arrived at

S

_{n}= v

_{1}-(n+1)v

_{n+1}