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凹透鏡 Concave Lens
Autor:
Alex CHIK
Drag the grey/ red points to change positions of the object. Drag the black point to change source of light.
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
Nuevos recursos
Drunk Parabola
bewijs stelling van Pythagoras
Graph of y = ax² + bx + c
Sketching Vector Function (1)
Quiz: Vertical Angles and Linear Pairs
Descubrir recursos
Untitled
Triangle Sum (Rotate about Midpoints)
Baseball Task Noah
square the circle
Descubre temas
Diagrama de cajas
Intervalo de Confianza
Segmento
Correlación
Moda