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[几何] 在C处的切线平行于BO

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hbghlyj Posted at 2025-1-8 08:27:40 |Read mode

Last edited by hbghlyj at 2025-1-16 11:40:00

$A(-2,0),B(0,0)$
求证：曲线$(x^2+y^2) e^x=c$（$c$为常数）在其上任一点$C$的切线与$BO$平行，其中$O$为$\triangle ABC$的外心。

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Author| hbghlyj Posted at 2025-1-16 17:06:05

是否可以使用@kuing的回答所用的方法来证明呢

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