Hi!
This one is giving me problems.
The book tells me to calculate the n:th partialsum by dividing into two or more terms. Then to prove that the series converge and calculate its sum.
What is it that I am supposed to do really, donīt really get it.
Thanks
Hi
Thanks for your help guys, it became a bit clearer for me.
I guess the 'trick' here is to write out some terms when
has been partial divided, and see what terms cancel out each other?
I got:
I can see that some terms cancel each other.
So I guess I`ll end up with:
Also thanks Krizalid for helping me with the convergence proof.
One question however, why did you write
?
Couldnīt we just make proof from scratch, without explicitly writing out the first term ?