Taekyun Kim, Dae San kim
Published 2024-10-02Version 1
In this paper, we study several degenerate trigonometric functions, which are degenerate versions of the ordinary trigonometric functions, and derive some identities among such functions by using elementary methods. Especially, we obtain multiple angle formulas for the degenerate cotangent and degenerate sine functions.
Identities between Appell's and hypergeometric functions
New identities for some symmetric polynomials and their applications
On some identities for confluent hypergeometric functions and Bessel functions
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