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Parabol Xem thêmLiên quan
Parabol Parabole (bướm đêm) Parabonna goffergei Parasola Parasol Henbē Parabel'sky (huyện) Paracolax tristalis Paradolichurus obidensis Paraboea changjiangensis ParablaxTài liệu tham khảo
WikiPedia: Parabol http://www.geocities.com/Area51/Quadrant/3864/sket... http://www.geocities.com/Area51/Quadrant/3864/sket... http://www.mathwarehouse.com/quadratic/parabola/in... http://mathworld.wolfram.com/Parabola.html http://math.fullerton.edu/mathews/n2003/TangentPar... http://www.mste.uiuc.edu/dildine/sketches/parabola... http://web.archive.org/web/20060212072618/http://m... http://web.archive.org/web/20070625162103/http://m... http://www.cut-the-knot.org/Curriculum/Geometry/Ar... http://www.cut-the-knot.org/Curriculum/Geometry/Pa...