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Function: get_footer

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Function: require_once

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[수학 정보] 타원 관련 질문
Scubed 2022.06.07 09:24 조회 286

장반경이 a, 단반경이 b, 원점을 중심으로 하는 타원에서

임의의 타원 위의 점에 대해 그 점에서의 접선과 초점(아무거나 하나)를 이은 선이 이루는 각을 a,b에 관해 나타낼 수 있나요?

  •  
    Scubed Lv.7 2022.06.07 09:24

    a=b이면 항상 90이 되는데 아닌 경우는...

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  •  
    Amath Lv.8 2022.06.08 02:14

    타원의 초점을 a,b를 이용한 식으로 나타낼 수 있고, 그러면 장반경을 연장한 직선과 단반경을 연장한 직선이 이루는 좌표평면을 생각했을 때, 초점과 그 선택한 타원 위의 점을 연결한 직선의 기울기를 구할 수 있고, 

     

    또 그 선택한 점에서의 타원의 접선의 기울기도 구할 수 있으므로, 그 두 기울기 가지고 구하면 돼요. 

     

     

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    •  
      Scubed Lv.7 2022.06.08 09:10

      열심히 노가다해보겠습니다...ㅠ

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