如何证明焦点弦与椭圆内切圆相切时三角形面积最大（见补充）？ 知乎 Sketch Coloring Page

如何证明焦点弦与椭圆内切圆相切时三角形面积最大（见补充）？ 知乎 Template

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sketch #3107 Hitman by Miguel Edgardo Montes Cuaresma

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sketch #3107 Hitman by Miguel Edgardo Montes Cuaresma

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sketch #4934 Nami-Ki Roberto Castro Colimil

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sketch #3974 Bird Skerch w/ vibration

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sketch #3974 Bird Skerch w/ vibration

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sketch #5223 Elsa from Frozen by Ben De Jesus

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sketch #3670 Bugs Bunny by Jessica Column

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sketch #3670 Bugs Bunny by Jessica Column

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sketch #4661 Woodpecker by Hsien-Ying Hsieh

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sketch #4661 Woodpecker by Hsien-Ying Hsieh

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sketch #288 RK

sketch #2787 Spongebob by ShopRasta Roots

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sketch #2787 Spongebob by ShopRasta Roots

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sketch #921 comics ufo

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sketch #5212 Katy Perry by Shahid Khokhar

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sketch #3567 Worried Girl by Juvenilia Alexandrino

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tomski如何证明焦点弦与椭圆内切圆相切时三角形面积最大（见补充）？ 知乎 coloring

如何证明焦点弦与椭圆内切圆相切时三角形面积最大（见补充）？ 知乎 sketch template

如何证明双曲线焦点三角形内切圆圆心的横坐标为半实轴长？ 知乎 sketch template

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如何证明过椭圆焦点作两互相垂直的直线，交椭圆于4个点，用最小二乘法拟合这四个点，则拟合直线过定点 知乎 sketch template

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