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Yazmary Rondón |
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Geometría Analítica:
http://filemon.upct.es/~pepemar/conicas/index.htm http://www.youtube.com/watch?v=n-Fy0jhTqcI&feature=related
http://www.youtube.com/watch?v=tEs2PqtjTS4&feature=related
http://www.youtube.com/watch?v=IGp3GMT24LQ&feature=related
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