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每日一道選填題5(圓錐曲線)

2022-09-10 22:44 作者:因戀相思久  | 我要投稿

中秋節(jié)快樂!

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橢圓的定義,橢圓的對稱性

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本題是非常經典的阿基米德三角形

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技巧點:

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反之成立

ps:二級結論自行推導才能更好應用





每日一道選填題5(圓錐曲線)的評論 (共 條)

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