Teorema da raiz complexa conjugada (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Teorema da raiz complexa conjugada" in Portuguese language version.

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1books.google.com

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books.google.com

Anthony G. O'Farell and Gary McGuire (2002). «Complex numbers, 8.4.2 Complex roots of real polynomials». Maynooth Mathematical Olympiad Manual. [S.l.]: Logic Press. 104 páginas. ISBN 0954426908 Preview available at Google books