trigonometric functions

On Some Trigonometric and Inverse Trigonometric Integral Formulas
Christophe Chesneau
Annals of Communications in Mathematics 2025
8 (3)
386-392
DOI: https://doi.org/10.62072/acm.2025.080305
ABSTRACT. This paper presents a new collection of trigonometric and inverse trigonometric integral formulas based on a known integral result. Some of these formulas evaluate to zero, while others are notable for their connection to well-known mathematical constants, such as π,√ 2, and the Catalan constant. Comprehensive proofs are provided for all results, and an open problem is posed to inspire further investigation.