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    fisherboat⚡️🎴

    @fisherboat97307

    善炭堆积处

    ☆quiet follow Yell with Emoji 💖 👍 🎉 😍
    POIPOI 7

    fisherboat⚡️🎴

    ☆quiet follow

    善x鬼化炭,骑乘
    関数 f(x) = x\ln x - \dfrac{1}{2}kx^2 - x ( k は実数)が与えられ、その導関数を f'(x) とする
    (1) k = \dfrac{1}{e} のとき、曲線 y = f(x) 上の点 (e, f(e)) における接線の方程式を求めよ

    #善炭
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