Trigonometric formulae via telescoping method

Wenchang Chu1
1Dipartimento di Matematica e Fisica ”Ennio de Giorgi” Università del Salento, Lecce-Arnesano P. O. Box 193 Lecce 73100, ITALY

Abstract

Motivated by the Monthly problem #11515, we prove further interesting formulae for trigonometric series by means of telescoping method.

Keywords: Telecoping method; Trigonometric series; Geometric series