On some trigonometric power sums.
Chen, Hongwei (2002)
International Journal of Mathematics and Mathematical Sciences
Similarity:
The search session has expired. Please query the service again.
The search session has expired. Please query the service again.
Chen, Hongwei (2002)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Borwein, J.M., Bradley, D.M., Broadhurst, D.J. (1997)
The Electronic Journal of Combinatorics [electronic only]
Similarity:
Juan Varona (2006)
Open Mathematics
Similarity:
We give a short proof to characterize the cases when arccos(√r), the arccosine of the squareroot of a rational number r ∈ [0, 1], is a rational multiple of π: This happens exactly if r is an integer multiple of 1/4. The proof relies on the well-known recurrence relation for the Chebyshev polynomials of the first kind.
Amghibech, S. (2007)
Journal of Integer Sequences [electronic only]
Similarity:
Hoffman, Michael (1999)
The Electronic Journal of Combinatorics [electronic only]
Similarity:
Konyagin, Sergei V., Lev, Vsevolod F. (2000)
Integers
Similarity:
Muzaffar, Habib (2005)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Xin, Guoce (2004)
The Electronic Journal of Combinatorics [electronic only]
Similarity:
John Conway, A. Jones (1976)
Acta Arithmetica
Similarity:
Slavin, Keith R. (2008)
Integers
Similarity:
Borwein, Jonathan M., Chamberland, Marc (2007)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Kirschenhofer, Peter (1996)
The Electronic Journal of Combinatorics [electronic only]
Similarity: