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  • 动点最值;面积法;轴对称

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  • 动点;路径值;正方形

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  • 动点最值&旋转&椭圆模型

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  • 动点最值问题&抛物线模型

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  • 线性规划&不等式&可行域&目标函数

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  • 简单迭代;迭代列表

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  • 迭代多边形;平移;向量

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  • 河南2019中考第23题

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  • 二面角的夹角

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  • 高考真题椭圆

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  • 分段函数动点轨迹

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  • 双曲线轨迹演示

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