Geometrical meaning of arithmetic series [image omitted], [image omitted] and [image omitted] in terms of the elementary combinatorics

• Autores: Y. Kobayashi
• Localización: International journal of mathematical education in science and technology, ISSN 0020-739X, Vol. 42, Nº. 5, 2011, págs. 657-664
• Idioma: inglés
• DOI: 10.1080/0020739x.2010.550943
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• Resumen

  • The formula [image omitted] is closely related to combinatorics through an elementary geometric exercise. This approach can be expanded to the formulas [image omitted], [image omitted] and [image omitted]. These formulas are also nice examples of showing two approaches, one algebraic and one combinatoric, to a problem of counting