4 ____ \ ` \ / 2 3\ \ | 4*x 8*x | / |-2*x - ---- - ----| / \ 2 3 / /___, n = 1
Sum(-2*x - 4*x^2/2 - 8*x^3/3, (n, 1, 4))
3 2 32*x -8*x - 8*x - ----- 3
-8*x - 8*x^2 - 32*x^3/3
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