Professional paper

Several formulae for the products of sines and cosines of angles \(1^{\circ},2^{\circ},...,89^{\circ}\)

Vladimir Volenec ; ∗Prirodoslovno matematički fakultet, Sveučilište u Zagrebu

Abstract

C. A. Laisant calculated several interesting products of the sines of angles \(1^{\circ},2^{\circ},...,89^{\circ},90^{\circ}\).
Here, we calculate some other such products by the same method.

Keywords

sine; cosine; complementary angle; sine and cosine addition formulae

Hrčak ID:

248387

URI

https://hrcak.srce.hr/248387

Publication date:

15.6.2020.

Article data in other languages: croatian

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