$$$\ln\left(y\right)$$$的导数
您的输入
求$$$\frac{d}{dy} \left(\ln\left(y\right)\right)$$$。
解答
自然对数的导数为 $$$\frac{d}{dy} \left(\ln\left(y\right)\right) = \frac{1}{y}$$$:
$${\color{red}\left(\frac{d}{dy} \left(\ln\left(y\right)\right)\right)} = {\color{red}\left(\frac{1}{y}\right)}$$因此,$$$\frac{d}{dy} \left(\ln\left(y\right)\right) = \frac{1}{y}$$$。
答案
$$$\frac{d}{dy} \left(\ln\left(y\right)\right) = \frac{1}{y}$$$A
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