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Vector in R2
Author:
sealion1215
GeoGebra
New Resources
找出對稱軸
兩位數除以一位數（一）
拼砌四邊形
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
Discover Resources
Area of triangle using 0.5bs sinA
Copy of 劉徽的「割圓術」
Learn01
圖解兩向量所張開之平行四邊形面積
Copy of 分數與小數
Discover Topics
Cosine
Geometric Distribution
Fractal Geometry
Arithmetic Mean
Circle