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Sum of the first odd numbers
Auteur :
Vincent Pantaloni
Thème :
Addition
,
Nombres
,
Suites et Séries
GIF
What is this ?
This is an original visual proof that :
The sum of the 1st n odd numbers is equal to n².
1+3+5+...+(2n-1)=n².
ggb applet
GeoGebra
Bigger GeoGebra applet with spheres
GeoGebra
GIF (HD)
Reboot of an older (bigger) version :
https://www.geogebra.org/m/mt8apr5e
Nouvelles ressources
Slope Between 2 Points (Phase 2)
Linear Approximations
Publish app "Public" test
רישום חופשי
Colors for GeoGebra
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Шестаков. 2.3.26б
cafard 2
Equidistant triangle
Copia di Moto parabolico con velocità di lancio qualsiasi
Découvrir des Thèmes
PPCM et PGCD
Cercle Circonscrit
Mode
Triangles Rectangles
Moyennes