Stirling, Anna and Szabó, Csaba and Szörényi, Sára and Vásárhelyi, Éva and Szeibert, Janka (2024) On elementary representations of cos 75° and cos 15°. ANNALES MATHEMATICAE ET INFORMATICAE, 60. pp. 278-284. ISSN 1787-6117
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Official URL: http://doi.org/10.33039/ami.2024.12.002
Abstract
In this paper we present geometric and algebraic representation of values of cos 75° and cos 15° without using trigonometric identities or iterated applications of taking roots.
| Item Type: | Article |
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| Uncontrolled Keywords: | values of sine and cosine, representation of real numbers, roots |
| Subjects: | Q Science / természettudomány > QA Mathematics / matematika |
| Depositing User: | Tibor Gál |
| Date Deposited: | 23 Jan 2025 13:41 |
| Last Modified: | 23 Jan 2025 13:41 |
| URI: | https://real.mtak.hu/id/eprint/214255 |
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