Comments by "黒西島ステーション" (@shin-ishikiri-no) on "Summation Notation Practice | MIT 18.01SC Single Variable Calculus, Fall 2010" video.

  1. She's perfect... I want her to teach me math so I can study for her exam.
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  2. If only she gave me a harder math problem... Oh god.... I need a harder one.
    2