oo ____ \ ` \ / n \ \ |(x - 1) | / |--------*n + 1| / \ 2 / /___, n = 1
Sum(((x - 1)^n/2)*n + 1, (n, 1, oo))
/ -1 + x | -------- for |-1 + x| < 1 | 2 | (2 - x) | | oo < ___ | \ ` | \ n | / n*(-1 + x) otherwise | /__, |n = 1 \ oo + ------------------------------------ 2
oo + Piecewise(((-1 + x)/(2 - x)^2, |-1 + x| < 1), (Sum(n*(-1 + x)^n, (n, 1, oo)), True))/2
x^n/n
(x-1)^n
1/2^(n!)
n^2/n!
x^n/n!
k!/(n!*(n+k)!)
csc(n)^2/n^3
1/n^2
1/n^4
1/n^6
1/n
(-1)^n
(-1)^(n + 1)/n
(n + 2)*(-1)^(n - 1)
(3*n - 1)/(-5)^n
(-1)^(n - 1)*n/(6*n - 5)
(-1)^(n + 1)/n*x^n
(3*n - 1)/(-5)^n