# Series: Definitions and Properties problem

1. Apr 5, 2010

### Slimsta

1. The problem statement, all variables and given/known data
[PLAIN]http://img528.imageshack.us/img528/7061/37557155.jpg [Broken]

2. Relevant equations

3. The attempt at a solution
i dont understand, what can possibly wrong with this :S
I checked it so many times over and over but everything seems to be right..
i dont even have this feeling about any of those that one is might be something else.. im 99.9% sure about everything

Last edited by a moderator: May 4, 2017
2. Apr 5, 2010

### rs1n

This: $\{ a_n \}_{n=1}^m$ is not a series (i.e. not a sum); this is a list of elements (i.e. a sequence).

3. Apr 5, 2010

### Slimsta

oh i see.. little word messed up my whole answer :/
thanks man!