Envelope of familiy of parabolas
103648
Envelope of Projectile Trajectories
26010
Parabola in parametric form
108550
Elements of $\mathbb Q(2^{1/3})$
37060
The Parallelogram Identity for an inner product space
102496
Derivation of the formula for the vertex of a parabola
1794
$\exp(A+B)$ and Baker-Campbell-Hausdorff
81975
Sequence of triangles with exponentiated sides
53244
Prove that $p \in \mathbb{R}[x]$ can be represented as a sum of squares of polynomials from $\mathbb{R}[x]$
21570
Intersection of a family of non-empty closed intervals
42213
Computing $\text{Gal}(\mathbb{Q}^{ab}/\mathbb{Q})$
52596
A basis for $k(X)$ regarded as a vector space over $k$
35714
Adjoint pairs, triplets and quadruplets
153054
Euler characteristic for non-convex polyhedra.
152518
Proof that the set of all possible curves is of cardinality $\aleph_2$?
109649
idempotents acting as local identities
23414
Topologist's Sine Curve: A rigorous proof of why $\overline{S} = S \cup V$
131881
Show that the roots of P' lie in the same half plane as the roots of P