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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Try and sketch some of theseBaseball diamond, Turban, Garters, Guitar, Doctor, Pregnant woman, Tower, Parachute, Lips, Casket, view more ideas


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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