Added: 2 years ago
From: medi4stroke
Views: 1,811
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  • まだ高校一年生なのに君はよく勉強しているね!

    コメントありがとう☆

  • Comment removed

  • こちらこそ、お褒めのお言葉を有難う御座います。

    x=exp(ln(x))は対数の定義から自明だと思われます が。

  • Comment removed

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