Simson's line

Auteur :Terry Tam

P is a point on a circle, and ABC is an inscribed triangle. Prove that the feets of altitudes of point P on 3 sides of the triangle are collinear. (Hint: Consider PABC as a cyclic quadrilateral)

Nouvelles ressources

גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Graphs of Rational Expressions
Vertical and Oblique Asymptote
Slope Between 2 Points (Phase 2)
Discriminant of y = ax² + bx + c

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Mathematics (Exponential Function)
Colouring "book", just for fun ;-)
Ueberholen
Sound Demos
Binomio al cuadrubo
Vertex Form of a Parabola

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Allure de Courbe
Continuité
Dérivée
Courbes Paramétriques
Sphère