- #1
Bashyboy
- 1,421
- 5
Homework Statement
[itex]\sum_{n=2}^{\infty} \frac{1}{n^2-1}[/itex]
Homework Equations
The Attempt at a Solution
After doing partial fraction decomposition, I discovered that it was a telescoping series of some sort; the partial sum being 1/2[ (1 -1/3) + (1/2 - 1/4) + (1/3 - 1/4) +...] The only thing I can't do is see the pattern to make a nth partial sum. How would I go about this?