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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 빛의 반사
뉴＿턴 2019.07.14 08:25 조회 1030
문제 푼 사람 0명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

인 직사각형이 있을 떄 점 ㄴ에서 점 ㅁ으로 빛을 쏘았을 떄 빛은 벽에 몇번 반사되며 어느 꼭짓점으로 들어갈지 구하여라

 

또, 점ㄷ에서 점 ㅁ까지의 길이가 xcm 일때 어느 점으로, 몇번 반사되어 들어갈지 구하여라

이 문제 어떠셨나요?

글쎄요

0

어려워요

0

문제 찜하기 목록보기
댓글 12
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  •  
    뉴＿턴 Lv.8 2019.07.14 08:26

    이 댓글에다가 답 써주세요~~~~

    댓글 작성하기 좋아요0 댓글수11
    •  
      K→C≡N Lv.11 2019.07.15 04:36 비밀댓글
      비밀 댓글이 등록 되었습니다!
    •  
      뉴＿턴 Lv.8 2019.07.15 06:33

      댓글은 비댓으로 바꿔주시고, 답은 다시 한번 더 생각해 주세요^^

      좋아요0
    •  
      크세노스 Lv.1 2019.07.16 04:47 비밀댓글
      비밀 댓글이 등록 되었습니다!
    •  
      뉴＿턴 Lv.8 2019.07.16 05:36

      크세노스님 정답입니다.

      좋아요0
    •  
      뉴＿턴 Lv.8 2019.07.16 05:37

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      혹시 점ㄷ에서 점 ㅁ 까지의 길이가 x 일때는 몇번 반사되고 어디로 갈지 알수 있을까요??(단, 0< x< 8)

      좋아요0
    •  
      크세노스 Lv.1 2019.07.18 06:08

      글쎄요.. 길이가 주어진 것이 아닌, 임의의 숫자 x라서 특정 조건을 만족하는 경우를 찾아야 되는데, 못 찾겠네요ㅠㅠ 여러번 풀어봤으나, 결국 실패했습니다..

      좋아요0
    •  
      뉴＿턴 Lv.8 2019.07.19 05:33

      그래도 크세노스님, 답은 찾지 못하셨지만 많은 도전을 하고, 제 문제에 노력해주셔서 감사합니다. ^^

      좋아요0
    •  
      뜨끈한국밥 Lv.5 2019.07.25 04:45 비밀댓글
      비밀 댓글이 등록 되었습니다!
    •  
      뉴＿턴 Lv.8 2019.07.26 05:43

      뜨끈한국밥 님, 1번 문제는 정답이시고, 2번 문제는 x가 자연수가 아닌 소수, 무리수.... 등도 다 계산해서 쉽게 말하면 모든 x에 관한 수식을 만들 수 있냐는 문제입니다.

      좋아요0
    •  
      김우현 기자 Lv.5 2019.07.26 18:35 비밀댓글
      비밀 댓글이 등록 되었습니다!
    •  
      뉴＿턴 Lv.8 2019.07.26 22:37 비밀댓글
      비밀 댓글이 등록 되었습니다!

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