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重心 謝易昀
Author:
cloudyhsieh711
New Resources
弦图
龍騰4-1拋物線習題8
平行四边形面积等底等高探究
对称轴对图像的影响
橢圓軌跡
Discover Resources
優良作品6
Bezier curves
等面積
Penrose Stair2 (sequence)
教学素材：椭圆离心率
Discover Topics
Calculus
Trigonometry
Conic Sections
Continuity
Perimeter
