$$$\left|{x}\right|$$$的导数
您的输入
求$$$\frac{d}{dx} \left(\left|{x}\right|\right)$$$。
解答
绝对值的导数为 $$$\frac{d}{dx} \left(\left|{x}\right|\right) = \frac{x}{\left|{x}\right|}$$$:
$${\color{red}\left(\frac{d}{dx} \left(\left|{x}\right|\right)\right)} = {\color{red}\left(\frac{x}{\left|{x}\right|}\right)}$$因此,$$$\frac{d}{dx} \left(\left|{x}\right|\right) = \frac{x}{\left|{x}\right|}$$$。
答案
$$$\frac{d}{dx} \left(\left|{x}\right|\right) = \frac{x}{\left|{x}\right|}$$$A
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