- #1
- 7
- 0
Serie's sum of 2/n*7^n?
How do we find it's sum for n=1 to n=inf?
I really do not know how to start, wolfram alpha gave me the answer, but I'm not making any sense out of it.
http://www.wolframalpha.com/input/?i=n=1+to+n=inf+2/(n*7^n)+sum
How do we find it's sum for n=1 to n=inf?
I really do not know how to start, wolfram alpha gave me the answer, but I'm not making any sense out of it.
http://www.wolframalpha.com/input/?i=n=1+to+n=inf+2/(n*7^n)+sum