Just for the record, this is not homework, it is part of the review for my final exam (which is in 2 hours!) D:

It can be found at this address, in case you doubt me.

My web Page

If you know how to solve this, I have a question:

How do you know which values to test out for convergence (in order to find the interval)?

Is this just a random test, or are there steps to take to figure out possible values in the interval?

Thanks in advance!