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 #2959 manga girl blue hair

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sketch #2959 manga girl blue hair

sketch #5437 Mikasa from Attack on Titan by Manimarmuthu Muthu

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sketch #5437 Mikasa from Attack on Titan by Manimarmuthu Muthu

sketch #879

Laura Agapi Asnicar
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sketch #5131 Miley Cyrus by Vannak Von

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sketch #5131 Miley Cyrus by Vannak Von

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sketch #4471 Brother Bear by Samuel Roberto

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sketch #4471 Brother Bear by Samuel Roberto

sketch #5079 SketchToy Pencil by Sarah Prieto

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sketch #5079 SketchToy Pencil by Sarah Prieto

sketch #5153 Random Access Memories by Khin Nyunt

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sketch #5153 Random Access Memories by Khin Nyunt

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sketch #2881 Mickey Mouse by Michael Angcay

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sketch #2881 Mickey Mouse by Michael Angcay

sketch #3727 Stitch by Louis Tradieu

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sketch #3727 Stitch by Louis Tradieu

sketch #804

Laura Agapi Asnicar
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sketch #5127 Captain America by Mark Phillips

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sketch #5127 Captain America by Mark Phillips

sketch #4905 The Little Prince by Gaurav Patel

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sketch #4905 The Little Prince by Gaurav Patel

sketch #245 Fishy

Lucy Barnard
sketch #245 Fishy

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sketch #3769 The Beatles by يآآسر محمد

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sketch #3769 The Beatles by يآآسر محمد

sketch #3365 Igor by Johan Kennet Espinoza Moreno

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sketch #3365 Igor by Johan Kennet Espinoza Moreno

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sketch #1041 strawberries

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sketch #1041 strawberries

sketch #3755 Panda by Roberto Castro Colimil

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sketch #3755 Panda by Roberto Castro Colimil

sketch #2018

Charlie Vo
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sketch #4934 Nami-Ki Roberto Castro Colimil

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sketch #4934 Nami-Ki Roberto Castro Colimil

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