$$$\ln\left(d\right)$$$ 的導數
您的輸入
求$$$\frac{d}{dd} \left(\ln\left(d\right)\right)$$$。
解答
自然對數的導數為 $$$\frac{d}{dd} \left(\ln\left(d\right)\right) = \frac{1}{d}$$$:
$${\color{red}\left(\frac{d}{dd} \left(\ln\left(d\right)\right)\right)} = {\color{red}\left(\frac{1}{d}\right)}$$因此,$$$\frac{d}{dd} \left(\ln\left(d\right)\right) = \frac{1}{d}$$$。
答案
$$$\frac{d}{dd} \left(\ln\left(d\right)\right) = \frac{1}{d}$$$A
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