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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/unesp/360912
Title: 
A visual proof of the double-angle formula for sine
Author(s): 
Boucher, Chris
Language: 
eng
Description: 
  • The double-angle formula for sine states that sin(2x) = 2sin(x)cos(x). Computing the area of a triangle using the formula A = (b*h)/2 (area equals one-half base times height) gives sin(2x) for the top triangle and 2sin(x)cos(x) for the bottom triangle
  • Componente Curricular::Ensino Médio::Matemática
Issue Date: 
  • 20-Sep-2008
  • 20-Sep-2008
  • 20-Sep-2008
  • 13-Sep-2008
Keywords: 
  • Sine
  • Cosine
  • Educação Básica::Ensino Médio::Matemática::Álgebra
Credits: 
This demonstration needs the "MathematicaPlayer.exe" to run. Found in http://objetoseducacionais2.mec.gov.br/handle/mec/4737
Source: 
http://objetoseducacionais2.mec.gov.br/handle/mec/5610
URI: 
http://acervodigital.unesp.br/handle/unesp/360912
Rights: 
Demonstration freeware using Mathematica Player
Type: 
outro
Appears in Collections:MEC - Objetos Educacionais (BIOE) - OE

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