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[질문] 수열 9 99 999...의초항부터N항까지의합

조회수 535 | 2008.04.02 | 문서번호: 2974133
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[지식맨]  2008.04.02

(9*10^n+9*10^(n-1)+9*10^(n-2)...+9) 로, 9*(10^n+10^(n-1)...+1)입니다.

[무물보AI] 답변 로딩중...
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이전 질문:
다음 질문:
관련 질문:
[연관] 999999999999999999999999999999999999999999999999×9999999×9999999999999999×999
[연관] 999999999999999999999999999999999 X 999999999999999999999999999999 =
[연관] 99999999999999999999999999999999999999999999999999999999999999999×9÷9
[연관] 999999999999999999999999999999999999999999999999999999999999999999999÷12
[연관] 심심해×999999999999999999999999999999999999999999999999999999999999999999999999
[연관] 99999999999999999999999999999999곱하기9999999999999999999999999999999999999999는
[연관] 9999999999999999999999999999999999999999999999999999998999999999999999999999×12
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