oo ___ \ ` \ n / sin(2*x)*sin (x) /__, n = 1
Sum(sin(2*x)*sin(x)^n, (n, 1, oo))
// sin(x) \ || ---------- for |sin(x)| < 1| || 1 - sin(x) | || | || oo | |< ___ |*sin(2*x) || \ ` | || \ n | || / sin (x) otherwise | || /__, | \\n = 1 /
Piecewise((sin(x)/(1 - sin(x)), Abs(sin(x)) < 1), (Sum(sin(x)^n, (n, 1, oo)), True))*sin(2*x)
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