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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

NÃmeros complexos: um estudo de aplicaÃÃes a trigonometria e as equaÃÃes algÃbricas / Complex numbers: a study of applications trigonometry and algebraic equations

Adenildo Texeira de AraÃjo 10 June 2014 (has links)
O estudo dos nÃmeros complexos no ensino mÃdio à caracterizado, quase exclusivamente, pela abordagem algÃbrica deixando a parte geomÃtrica e suas aplicaÃÃes sem uma devida importÃncia. Este trabalho apresenta um estudo sobre nÃmeros complexos bem como algumas de suas aplicaÃÃes tanto da parte algÃbrica, aplicada a polinÃmios, quanto da parte geomÃtrica aplicada em especial à trigonometria. De inÃcio fizemos uma abordagem dos fatos histÃricos desses nÃmeros citando alguns matemÃticos que deram suas contribuiÃÃes acerca desse conjunto complexo. Em seguida à apresentada a parte teÃrica, algÃbrica e geomÃtrica, bem como algumas aplicaÃÃes a trigonometria. Por fim apresentamos a teoria das equaÃÃes algÃbricas quadrÃticas e cÃbicas e a interaÃÃo dessas com os nÃmeros complexos. / The study of the complex numbers in the medium teaching is characterized, almost exclusively, for the algebraic approach leaving the geometric part and their applications without a due importance. This work presents a study on complex numbers as well as some of their applications so much of the algebraic part, applied to polynomials, as of the geometric part especially applied to the trigonometry. Of I begin did an approach of the historical facts of those numbers mentioning some mathematical that gave their contributions near of that complex group. Soon afterwards the part theoretical, algebraic and geometric is presented, as well as some applications the trigonometry. Finally we presented the theory of the quadratic and cubic algebraic equations and the interaction of those with the complex numbers.

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