- #1
djuiceholder
- 8
- 0
Homework Statement
so I have learned how to do different problems of series.
but there's this problem that I spent hours last night but could not come up with anything.
which is-
∞
∑ n/2^(n-1)
n=1
Homework Equations
I have no idea
The Attempt at a Solution
so from there i was able to take out 2 and end up with: 2 n /(2^n)
i don't know how to do after that. however, i thought about doing (1/2)^n but then again it does not make sense to me.
help needed. i will appreciate that. thanks