[postlink]http://concursotube.blogspot.com/2010/11/juros-simples-matematica-para-concursos.html[/postlink]http://www.youtube.com/watch?v=d7Edxv3NEb8endofvid
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Aprenda Juros Simples com o Professor Márcio Barbosa.
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Juros Simples - Matemática para Concursos

[postlink]http://concursotube.blogspot.com/2010/11/taxa-real-e-taxa-nominal.html[/postlink]http://www.youtube.com/watch?v=7yvW3je1DEoendofvid
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Diferença entre a taxa real e a taxa nominal na matemática financeira.
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Taxa Real e Taxa Nominal