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La courbe des tangentes à une courbe - Liceo Scientifico R. Bruni (Padova)

Titre du sujet: 
La courbe des tangentes à une courbe
Sujet jumelé ?: 
Let us consider the dual space which guarantees that a line of a space can be represented as a point in another space. In other words, the straight line $y=mx+q$ becomes the point $\left( m, q \right)$. Let the former be the Euclidean space and let call the latter the dual world. We study what tangents lines to Euclidean conics and other curves are turned in.
Nombre d'élèves : 

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Sujet | by Dr. Radut