Sum of n-th roots of unity
7891
Sum of nth roots of unity
41193
Number of integral roots of a polynomial
106280
Integrating the formula for the sum of the first $n$ natural numbers
145509
Prove the roots of $p(z)+z^n\bar{p}(\frac{1}{z})$ lie on the unit circle
101017
What is the sum of $\sum\limits_{i=1}^{n}ip^i$?
140172
How to compute the Riemann sum of $x^n$ for any positive integer $n$?
96361
Limit of $n$th root of $n$!
83145
Sum of rational numbers
150822
Finding $\sum_{k=0}^{n-1}\frac{\alpha_k}{2-\alpha_k}$, where $\alpha_k$ are the $n$-th roots of unity
43188
The $n^{th}$ root of the geometric mean of binomial coefficients.
24000
Roots of Sum of Two Polynomials (with Known Roots)
20713
The sum of an uncountable number of positive numbers
109760
Showing that the product of all $n$th Roots of Unity is $(-1)^{n+1}$
110975
Summation of reciprocals
120215
Sum of elements of a finite field
103840
Calculate $\sum_{k=1}^n k2^{n-k}$
36742
The sum of $(-1)^n \frac{\ln n}{n}$