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수학동아 - 폴리매스
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[잡담] 황금열쇠님 어디가 틀렸는지 설명해드리겠습니다
유한의끝도못본남자 2020.08.06 05:23 조회 471
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

 

나누기 2를 한 A와 A의 차이는

 

일반항이

 

F_n = 2^(n+1)

S_n = 2^n

으로 차이가 난다는 것입니다

즉, 아무리 뺀다고해도

2^(무한+1)은 빼지지않으므로

 

수열 A는 무한으로 발산한다는 사실을 알수있습니다

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