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수학을 주제로 떠들어 보세요!

제 프사에는 수학공식이 적혀있습니다. 바꾸려 하는데 댓글로 적을 공식을 써주세요. 기한 : 2/5일까지

  •  
    17수락 Lv.9 2021.01.30 06:52

    (ax+b)(cx+d)=acx^2+(ad+bc)x+bd(제가 가장 좋아하는 공식)

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  •  
    Scubed Lv.7 2021.01.30 09:14

    A PHP Error was encountered

    Severity: Warning

    Message: mkdir(): Permission denied

    Filename: libraries/Common.php

    Line Number: 202

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 202
    Function: mkdir

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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    Filename: libraries/Common.php

    Line Number: 213

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 213
    Function: file_put_contents

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 236
    Function: getLatexImg

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
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    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
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    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    T^{2}=\frac{4\pi^{2} }{G(M+m)}a^{3}

    원에 잘 들어갈 듯???

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  •  
    자몽이 Lv.6 2021.01.30 21:19

    폴리매스=사랑♡♡♡

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  •  
    오서준 Lv.6 2021.01.31 01:31

    오일러 등식이요( ei어쩌고 저쩌고 복잡해서 쓰지는 않겠습니다.)

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  •  
    문제은행 Lv.5 2021.01.31 07:15

    a^2+b^2=c^2 아니면

    -b(+-)sqrt(b^2-4ac)

               2a

    어떠십니까

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  •  
    잡담 Lv.7 2021.01.31 09:19

    0!= 1 어떤가요.

    간단한데...

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  •  
    △π Lv.9 2021.01.31 17:14

    A PHP Error was encountered

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    Filename: libraries/Common.php

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    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 202
    Function: mkdir

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 236
    Function: getLatexImg

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
    Line: 90
    Function: parseLatexImg

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
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    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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    Function: require_once

    A PHP Error was encountered

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    Line Number: 213

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 213
    Function: file_put_contents

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 236
    Function: getLatexImg

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
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    Function: parseLatexImg

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
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    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    \lim_{x \to 0} \frac{\ln(1+x)}{x}=1

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    •  
      사인 Lv.4 2021.01.31 20:36

      A PHP Error was encountered

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      Message: mkdir(): Permission denied

      Filename: libraries/Common.php

      Line Number: 202

      Backtrace:

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
      Line: 202
      Function: mkdir

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
      Line: 236
      Function: getLatexImg

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
      Line: 200
      Function: parseLatexImg

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
      Line: 343
      Function: view

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
      Line: 558
      Function: view

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
      Line: 315
      Function: require_once

      A PHP Error was encountered

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      Filename: libraries/Common.php

      Line Number: 213

      Backtrace:

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
      Line: 213
      Function: file_put_contents

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
      Line: 236
      Function: getLatexImg

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
      Line: 200
      Function: parseLatexImg

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
      Line: 343
      Function: view

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
      Line: 558
      Function: view

      File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
      Line: 315
      Function: require_once

      e 입니다.

      좋아요0
    •  
      △π Lv.9 2021.02.01 00:02

      @사인

      아닙니다만...?

      좋아요0
    •  
      사인 Lv.4 2021.02.03 22:15

      ln 이 잇군여 죄송함미다.

      좋아요0
  •  
    수학동아 Lv.8 2021.01.31 18:42

    근의 공식이요.

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  •  
    와이파이 Lv.5 2021.02.01 19:50

    (x+a)(y+b)=xy+ay+bx+ab (문제풀때 이거 써서 기분좋게 깔끔하게 풀리는 게 있습니다)

    피타고라스 정리 공식

    eπi+1=0(어 누가 말씀하셨네)

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