Identities and inequalities for the cosine and sine functions

2020/01/09 by Pinelis, Iosif
#26D05 #26D15 #40A25 #41A58 #Classical Analysis and ODEs (math.CA) #FOS: Mathematics

paper · doi:10.48550/arxiv.2001.03191

Abstract

Identities and inequalities for the cosine and sine functions are obtained.

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