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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
Line: 22
Function: driver
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
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Function: initiateCache
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Function: _error_handler
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: _error_handler
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: _error_handler
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: model
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getFloatingMyInfo
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Line: 559
Function: get_footer
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 완전제곱식, 거듭제곱식, 분수의 활용
가우스9
2020.05.10 05:19
조회 557
1.다음이 참이면 o표, 거짓이면 x표를 하시오.
(1) a/b + b/a = 2ab+p^2/ ab (단,p=b-a) ( )
(2) (a+b)^n = a^n + a^(n-1)*b + a^(n-2)*(b^2) + a^(n-3)*(b^3) + ... + (a^2)*(b^(n-2)) + a*b^(n-1) + b^n ( )
(3) 1 + a + a^2 + ... + a^(n-1) + a^n = (a^(n+1)-1)/(a-1) ( )
2.위를 이용하여 1 + a + a^2 + ... + a^(n-1) + a^n / (a+n)^n 을 간단히 하시오.
-
아인수타인
Lv.12
2020.05.10 07:48
죄송한데 수식입력기로 적어 주실 수 있을까요...? 읽기가 힘드네요...
-
아, 근데 신입이시면 잘 모르실 수 있어요(수식입력기)
저도 한 Lv.8인가 9인가 부터 썼어요
좋아요0
지금 바로
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