Is the fourth root of 2 constructible?
83119
Compass-and-straightedge construction of the square root of a given line?
49899
Determine the number of real roots
90933
Finding the roots of complex numbers
41312
Question on primitive roots of unity
34666
Prove that the expression cannot be a power of 2
2705
How many roots have modulus less than $1$?
53331
$\mathbb{Q}(\sqrt2, \sqrt3)$ is not isomorphic to $\mathbb{Q}(\sqrt[4]2)$
156034
sufficient condition for a polynomial to have roots in $[0,1]$
111199
Does there exist a formula for product of the primitive $ n $th roots of unity.
60041
Number of real roots of $3^x+4^x=2^x+5^x$ with proof
85383
No. Of real roots of an equation
40107
primitive n-th roots of unity
6398
Can the product of an $4\times 3$ matrix and a $3\times 4$ matrix be invertible?
109305
Non-existence of natural numbers such that $\sqrt{n} +\sqrt{n+1} <\sqrt{x} +\sqrt{y} <\sqrt{4n+2}$
36691
Parameters on $SU(4)$ and $SU(2)$
35660
Elements of order 2 in $D_{2n}$
69067
Principal $n$th root of a complex number