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  <blog_title>推しの積分</blog_title>
  <blog_url>https://intvoyager.hatenadiary.jp/</blog_url>
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  <description>(x^2+1)/(x^4-x^2+1) の積分【技巧的】【推しの積分7】. よくある三角関数で置換するタイプのやつかな？何番煎じだよ。と思った人、必見。</description>
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  <provider_url>https://hatena.blog</provider_url>
  <published>2020-12-20 00:22:46</published>
  <title>(x^2+1)/(x^4-x^2+1) の積分【技巧的】【推しの積分7】</title>
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