Is Sin7 is algebraic over Q
8352
When is $\sin x$ an algebraic number and when is it non-algebraic?
32760
Is $\mathbf{Q}(\sqrt{2}, \sqrt{3}) = \mathbf{Q}(\sqrt{2}+\sqrt{3})$?
8087
Algebraic integers of $\mathbb{Q}(\sqrt{m})$ for $m$ a squarefree integer
136019
Vector bundle on a quadric $Q$
39492
Finding $z\in \mathbb C$ with $\sin z = 2$?
43300
The degree of $\sqrt{2} + \sqrt[3]{5}$ over $\mathbb Q$
120699
Is $\mathcal{O}_{\mathbb{Q}(\sqrt{5})} = \mathbb{Z}[\phi]$?
144188
Prove that $\cos(z)$ and $\sin(z)$ are surjective over the complex numbers.
95459
$\mathbb{Q}(\sqrt{2+\sqrt{2}})$ is Galois over $\mathbb{Q}$?
83595
Proving that $\mathbb{A}=\{\alpha \in \mathbb{C}: \alpha \text{ is algebraic over } \mathbb{Q} \}$ is not a finite extension
138501
Is $\mathbf{Q}(\sqrt{2},\sqrt{3}) = \mathbf{Q}(\sqrt{6})$?
147459
Find a non-constructible algebraic number of degree $4$ over $\Bbb Q$
99585
Do the non-zero eigenvalues of AB and BA have the same algebraic multiplicity (for AB and BA not square)?
35216
Prove $\mathbb{Q}(\sqrt{2},\sqrt{3},\sqrt{5}):\mathbb{Q}$ is a simple extension
148310
Showing rational numbers are algebraic
622
Galois Group of $\sqrt{2+\sqrt{2}}$ over $\mathbb{Q}$
158502
Showing $\sin(\bar{z})$ is not analytic at any point of $\mathbb{C}$