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Top Questions
13
votes
The theoretical importance of the half-angle formulas
trigonometry
inequality
complex-numbers
euclidean-geometry
triangle-inequality
asked May 22, 2022 at 19:01
math.stackexchange.com
11
votes
Trigonometric formula for solving quadratic equations
algebra-precalculus
trigonometry
reference-request
asked Jan 13 at 19:50
math.stackexchange.com
10
votes
Generalization of the law of tangents for a cyclic quadrilateral
trigonometry
reference-request
euclidean-geometry
asked Mar 16, 2022 at 19:07
math.stackexchange.com
9
votes
A generalization of the law of tangents
reference-request
mg.metric-geometry
plane-geometry
trigonometric-functions
asked Mar 29, 2022 at 11:59
mathoverflow.net
9
votes
Solving 'impossible' integrals with a new (?) trick
ca.classical-analysis-and-odes
integration
trigonometric-functions
asked Feb 4 at 14:44
mathoverflow.net
8
votes
A curious family of integrals that give $\pi$
integration
asked Jul 18, 2023 at 3:39
mathoverflow.net
8
votes
Showing $\int_{-1}^{1} \frac{125}{12}\sqrt[10]{\frac{1 + x}{1 - x}} (x^2 - x) \, dx = \phi\pi$
integration
definite-integrals
asked Mar 28 at 5:34
math.stackexchange.com
7
votes
The jealous engineer problem
mathematics
asked Jul 26, 2022 at 13:46
puzzling.stackexchange.com
6
votes
A spherical version of the generalized half-angle formulas
euclidean-geometry
spherical-geometry
asked Apr 28, 2021 at 13:30
mathoverflow.net
5
votes
Generalizing Lami's theorem
geometry
trigonometry
reference-request
physics
asked Jul 10, 2022 at 21:51
math.stackexchange.com
1
2
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Top Answers
6
Is there a definite integral that yields $e^\pi$ or $e^{-\pi}$ in a non trivial way?
math.stackexchange.com