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任务10：黄金螺线与向日葵
Author:
陈丽婷
GeoGebra
New Resources
龙形曲线-分形龙2
常见四边形是否是双心四边形
活动三：应用性质
第三周作业效果演示
折扣
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sym1
外積分配律
Triangle
抛物线第一定义
sintx
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Distributions
Definite Integral
Rectangle
Linear Programming or Linear Optimization
Geometry