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Emmanuel José García
  • Member for 5 years, 11 months
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The half-angle formulas are more impresive than meet the eye!

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All Questions Answers
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question
6
A spherical version of the generalized half-angle formulas
Apr 28, 2021
question
5
A generalization of the law of tangents
Mar 29
question
1
Another proof of Euler inequality via the half-angle formulas
2 days ago
question
0
A generalization of the Pythagorean trig identity $\sin^2{\theta}+\cos^2{\theta}=1$
54 mins ago
question
0
Distances from a parallelogram to a plane
Dec 24, 2021
question
0
Primes p(n) such that p(n) + p(n+3) = p(n+1) + p(n+2) and p(n) + p(n+4) = p(n+2) + p(n+3) - Conjecture [closed]
Jul 5, 2016
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12
The theoretical importance of the half-angle formulas
10
Generalization of the law of tangents for a cyclic quadrilateral
5
Generalization of two formulae and an alternative proof of Bretschneider's formula

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