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[창의 퍼즐] [정수] 1부터 몇까지의 합?
원파 2020.06.18 08:39 조회 641
문제 푼 사람 2명
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

1부터 10까지의 합은 55이다. 물론 이는 자명하다.

1부터 100까지의 합은 5050이다. 이도 당연히 자명하다(가우스의 일화로 잘 알려져 있으니)

1부터 1000까지의 합은 500500이다.

그렇다면 1부터 10^n까지의 합을 n에 관한 식으로 나타내어 보아라.

(풀이과정은 필수입니다.)

이 문제 어떠셨나요?

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    해결
    우럭 Lv.9 2020.06.18 08:52 비밀댓글
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    해결
    수학만 Lv.6 2020.09.08 20:39 비밀댓글

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    다시 도전
    NimNim Lv.9 2020.12.21 20:59 비밀댓글
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