Jack d'Aurizio's exercise on Chebyshev polynomials
5433
Finite Sum $\sum\limits_{k=1}^{m-1}\frac{1}{\sin^2\frac{k\pi}{m}}$
76955
Proof the Legendre polynomial $P_n$ has $n$ distinct real zeros
31029
Characteristic polynomial of a matrix of $1$'s
127198
What is $\mathbb{C}^{Aut(\mathbb{C}/\mathbb{Q})}$?
41193
Number of integral roots of a polynomial
141184
Proof that a degree 4 polynomial has at least two roots
155138
Chebyshev polynomials increase more quickly than any other polynomial outside $[-1,1]$
63321
Polynomials and partitions
125474
Exercise 16 from chapter 3 of Stein & Shakarchi's complex analysis
138631
Overlapping Polynomials
56211
An operator that commutes with another operator $T$ with distinct characteristic values is a polynomial in $T$
46891
Irreducibility of reciprocal polynomials
58149
Working with symmetric polynomials
60816
Irreducibility of special cyclotomic polynomial.
109721
The number of zeros in a polynomial
42988
Complex polynomial and the unit circle
54212
Another polynomial equation