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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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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/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Line: 18
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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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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Line: 799
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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
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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.
결합법칙이 성립하는 이항연산은 연산의 순서를 달리할 수 있다. 예를 들어
1+2+3는 두 개의 더하기 중 먼저 더하기 할 것을 정하면 두가지 방법이 있고
1+2x3은 곱하기를 먼저 해야 되므로 한가지 방법이 있다.
1+2x3+4x5에서는 2x3의 연산을 이미 했다면 4x5의 곱하기보다 1+(2x3)의 더하기를 먼저 할 수도 있다.
10개의 수의 덧셈과 곱셈연산 1x2+3x4+5x6+7x8+9x10에서 연산 순서의 경우의 수를 구하여라.
진짜 맞추면 해결 10개 드림
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아인수타인
Lv.12
2020.02.22 04:11
1x2와 5x6의 덧셈을 할 수 있나요? 아님 이웃한 것만 덧셈할 수 있나요?
지금 바로
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