Easy to SAY. How long will it take you to compute 100 terms?
the funtion is cosh(z)/(1 -z) about z=0
to find the series representation would i not just multiply the series of cosh(z) with that of 1/(1-z) about z=0
After that is there any simplifying i could do? or will it just be a multiplication of 2 sums?
am i missing any tricks? seems too easy to do the way i'm doing it.
thanks for any help!
There are a few things like this. The first time I encountered it, I learned the term "Essentially Impossible". This was further defined as "Sure, you could do it, but who would want to?" Really, it's an existential argument. It is enough to say that it can be done. We don't actually have to do it.
I am delighted if you have learned today that math can cause a smile or two, even at this level.