We take the family of parabolas with foci (0,0), whose generic member we pass through the point (0,-b). We look at the locus of the points of intersection of the tangent through the point D.
Expressions
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We take the family of parabolas with foci (0,0), whose generic member we pass through the point (0,-b). We look at the locus of the points of intersection of the tangent through the point D. Expressions
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