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수학동아 - 폴리매스
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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [HME] n각기둥의 꼬인 위치
은총알 2020.01.21 03:28 조회 939
문제 푼 사람 0명
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

HME 수학학력평가 2015년도 하반기 22번 문제입니다.(한 번에 다 내면 해결이 없을 것 같아서 따로 낼게요)

 

밑면이 정다각형인 n각기둥에서 밑면의 한 모서리와 꼬인 위치에 있는 모서리의 개수를 f(n)이라 하자. 예를 들어 f(3)=3,f(4)=4일 때, f(11)+f(12)+f(13)+f(14)의 값을 구하여라.

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  •  
    은총알 Lv.11 2020.01.21 03:28 비밀댓글
    비밀 댓글이 등록 되었습니다.
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    GUN.007 Lv.11 2020.01.22 03:57 비밀댓글
    확인요청중
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    •  
      은총알 Lv.11 2020.01.22 04:08

      오 제가 맨 처음에 생각했던 답과 같네요

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