Olympiade Mathématique Belge
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Links
To Do
Subjects to see / to study:
- See relation with Tetrahedron, Stellated octahedron...
Theorem: http://www.codecogs.com/library/maths/geometry/pure/triangles-and-circles.php
http://mathworld.wolfram.com/DotProduct.html https://en.wikipedia.org/wiki/Dot_product https://en.wikipedia.org/wiki/List_of_trigonometric_identities#Angle_sum_and_difference_identities