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arctan(1) + arctan(1/2) + arctan(1/3) = π/2
Author:
Vincent Pantaloni
Topic:
Trigonometry
GeoGebra
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Fonction-partie
Activité de découverte
Scan to show a conic related to d, F, e.
Flocon de Koch 241026
Chronomètre en secondes.
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dessin mystère
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