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An Elementary Proof of the Identity cot [theta] = [image omitted]

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Bibliographic Details
Title: An Elementary Proof of the Identity cot [theta] = [image omitted]
Language: English
Authors: Ho, Weng Kin, Ho, Foo Him, Lee, Tuo Yeong
Source: International Journal of Mathematical Education in Science and Technology. 2012 43(8):1085-1092.
Availability: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site: http://www.tandf.co.uk/journals
Peer Reviewed: Y
Physical Description: PDF
Page Count: 8
Publication Date: 2012
Document Type: Journal Articles
Reports - Descriptive
Education Level: Higher Education
Descriptors: Calculus, Mathematics Instruction, Mathematical Logic, Mathematical Concepts, Mathematical Formulas, Validity, Equations (Mathematics), Problem Solving, Mathematics, Higher Education, College Freshmen, College Mathematics
DOI: 10.1080/0020739X.2011.644337
ISSN: 0020-739X
Abstract: This article gives an elementary proof of the famous identity [image omitted]. Using nothing more than freshman calculus, the present proof is far simpler than many existing ones. This result also leads directly to Euler's and Neville's identities, as well as the identity [image omitted].
Abstractor: As Provided
Number of References: 10
Entry Date: 2013
Accession Number: EJ994529
Database: ERIC
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Description
Abstract:This article gives an elementary proof of the famous identity [image omitted]. Using nothing more than freshman calculus, the present proof is far simpler than many existing ones. This result also leads directly to Euler's and Neville's identities, as well as the identity [image omitted].
ISSN:0020-739X
DOI:10.1080/0020739X.2011.644337