Is a definition always useful to calculate something?

• Autores: E. Contharteze Grigoletto, E. Capelas de Oliveira
• Localización: International journal of mathematical education in science and technology, ISSN 0020-739X, Vol. 44, Nº. 5, 2013, págs. 761-765
• Idioma: inglés
• DOI: 10.1080/0020739x.2012.756554
• Texto completo no disponible (Saber más ...)
• Resumen

  • We calculate the limit of a particular trigonometric functionAfter a question proposed by a student: can you show a particular result, involving a trigonometric limit, using the definition of limit? The answer to this question is the aim of this manuscript.in a case in which direct substitution results in an indeterminacy (zero over zero), in four different ways, showing that the definition is not always the best way to obtain a result.