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進入拋面的平行光會反射至焦點
Author:
Aoi Yamada
進入拋面的平行光會反射至焦點F p控制拋面的形狀 k控制平行光的高度
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
sanjiaohanshu
第八周作业
兩組對邊相等的四邊形
Discover Resources
正方形和長方形有甚麼特性?
正弦定理
三角形與邊上一點求正三角形
一元二次不等式(2)
全景平面投影
Discover Topics
Frequency Distribution
Set Theory
Vectors 2D (Two-Dimensional)
Right Triangles
Linear Equations