oo ____ \ ` \ n n + 1 \ (-2) *x / ------------ / n /___, n = 1
Sum(((-2)^n*x^(n + 1))/n, (n, 1, oo))
//-log(1 + 2*x) for And(x <= 1/2, x > -1/2)\ || | || oo | ||____ | ||\ ` | x*|< \ n n | || \ (-2) *x | || / -------- otherwise | || / n | ||/___, | \\n = 1 /
x*Piecewise((-log(1 + 2*x), (x <= 1/2)∧(x > -1/2)), (Sum((-2)^n*x^n/n, (n, 1, oo)), True))
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