How do you evaluate an infinite series?
There are different types of series, to what use different methods of evaluating
For example a converging geometric series:
but there are other series what can be approached with tricks!
After consideration we can recognise this is the same as...
There are also other infinite series that you can remember, and may be able to prove, a like:
There are many others, where there insist one set way of computing infinite series, there are many!