$$$\frac{1}{t}$$$的导数
您的输入
求$$$\frac{d}{dt} \left(\frac{1}{t}\right)$$$。
解答
应用幂次法则 $$$\frac{d}{dt} \left(t^{n}\right) = n t^{n - 1}$$$,其中 $$$n = -1$$$:
$${\color{red}\left(\frac{d}{dt} \left(\frac{1}{t}\right)\right)} = {\color{red}\left(- \frac{1}{t^{2}}\right)}$$因此,$$$\frac{d}{dt} \left(\frac{1}{t}\right) = - \frac{1}{t^{2}}$$$。
答案
$$$\frac{d}{dt} \left(\frac{1}{t}\right) = - \frac{1}{t^{2}}$$$A
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