We are excited to announce that the repository will soon undergo an upgrade, featuring a new look and feel along with several enhanced features to improve your experience. Please be on the lookout for further updates and announcements regarding the launch date. We appreciate your support and look forward to unveiling the improved platform soon.
dc.contributor.author | Thackeray, Henry (Maya) Robert![]() |
|
dc.date.accessioned | 2023-04-21T04:55:29Z | |
dc.date.issued | 2023 | |
dc.description.abstract | Inspired by arguments illustrating the Pythagorean theorem, this paper gives six interrelated dissection-like proofs of the law of cosines. Each proof treats the acute- and obtuse-angle cases together, and uses a trigonometric double-angle formula. Some of the proofs assume the Pythagorean theorem. | en_US |
dc.description.department | Mathematics and Applied Mathematics | en_US |
dc.description.embargo | 2024-02-14 | |
dc.description.librarian | hj2023 | en_US |
dc.description.sponsorship | The University of Pretoria’s UP Post-Doctoral Fellowship Programme. | en_US |
dc.description.uri | http://www.tandfonline.com/loi/umma20 | en_US |
dc.identifier.citation | Thackeray, H.R. 2022, 'Dissection-like proofs of the law of cosines', Mathematics Magazine, vol. 96, no. 2, pp. 120-129, https://doi.org/10.1080/0025570X.2023.2167407. | en_US |
dc.identifier.issn | 0025-570X (print) | |
dc.identifier.issn | 1930-0980 (online) | |
dc.identifier.other | 10.1080/0025570X.2023.2167407 | |
dc.identifier.uri | http://hdl.handle.net/2263/90412 | |
dc.language.iso | en | en_US |
dc.publisher | Taylor and Francis | en_US |
dc.rights | © 2023 Mathematical Association of America. This is an electronic version of an article published in Mathematics Magazine, vol. 96, no. 2, pp. 120-129, 2023, https://doi.org/10.1080/0025570X.2023.2167407. Mathematics Magazine is available online at: http://www.tandfonline.com/loi/umma20. | en_US |
dc.subject | Dissection-like proofs | en_US |
dc.subject | Law of cosines | en_US |
dc.subject | Pythagorean theorem | en_US |
dc.title | Dissection-like proofs of the law of cosines | en_US |
dc.type | Postprint Article | en_US |