$$$\frac{r}{l}$$$ 关于$$$t$$$的积分
您的输入
求$$$\int \frac{r}{l}\, dt$$$。
解答
应用常数法则 $$$\int c\, dt = c t$$$,使用 $$$c=\frac{r}{l}$$$:
$${\color{red}{\int{\frac{r}{l} d t}}} = {\color{red}{\frac{r t}{l}}}$$
因此,
$$\int{\frac{r}{l} d t} = \frac{r t}{l}$$
加上积分常数:
$$\int{\frac{r}{l} d t} = \frac{r t}{l}+C$$
答案
$$$\int \frac{r}{l}\, dt = \frac{r t}{l} + C$$$A
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