Mathematics
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Circulwyrd

Apparently, this user prefers to keep an air of mystery about them.

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  • Hygiene, CO
  • Member for 7 years, 6 months
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  • Last seen 3 hours ago

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18 Examples of famous problems resolved easily Oct 18 '13
14 History of the point at infinity? Jan 10 '14
8 equilateral triangle and trisection Jun 1 '13
7 Draw three congruent circles all touching one another, and a second set of three such circles, each touching also two of the first set. Jun 14 '14
6 Integrating left to right versus right to left. May 15 '13
6 What is so special about triangles?! Oct 31 '13
5 Show $\sin(x+h) \cdot \cos x - \cos(x+h) \cdot \sin x = \sin h$ (without limits please - straight trigonometry only). Aug 19 '14
4 3D Dodecahedron model: Construction question. Apr 10 '15
4 Surface area of platonic solids inscribed in unit sphere. Jul 2 '15
4 Is zero irrational? Oct 11 '13
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