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 #5040 Amy Winehouse by Timothy Palfreyman

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sketch #5040 Amy Winehouse by Timothy Palfreyman

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sketch #5203 Alien vs. Predator Ani Chachua

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sketch #2866 Soul Eater by Ani Chachua

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sketch #2866 Soul Eater by Ani Chachua

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sketch #12 my bear

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sketch #5127 Captain America by Mark Phillips

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sketch #5127 Captain America by Mark Phillips

sketch #5085 CM Punk by Luciana Nazar

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sketch #5085 CM Punk by Luciana Nazar

sketch #2959 manga girl blue hair

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sketch #2959 manga girl blue hair

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sketch #2699 Girl in shades Ashok Kumar Chaturvedi

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sketch #2699 Girl in shades Ashok Kumar Chaturvedi

sketch #2642 Red dog

Rachel Roe
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sketch #1953 愛鼠繪

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sketch #1953 愛鼠繪

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sketch #2797 Homer by Na Ruro

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sketch #3268 Werewolf by Mert Arda Yiğit

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sketch #3268 Werewolf by Mert Arda Yiğit

sketch #3014 Fancy

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sketch #474 waa

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sketch #4722 Ichigo by Gopal Gopi

sketch #4436 Bob Marley by Luiza Irma

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sketch #4436 Bob Marley by Luiza Irma

sketch #3039 Anonymous by Gootee Jaroonsit

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sketch #4306 The burning watermelon!

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sketch #4306 The burning watermelon!

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

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