$$$\frac{1}{x^{\frac{3}{2}}}$$$ 的積分
您的輸入
求$$$\int \frac{1}{x^{\frac{3}{2}}}\, dx$$$。
解答
套用冪次法則 $$$\int x^{n}\, dx = \frac{x^{n + 1}}{n + 1}$$$ $$$\left(n \neq -1 \right)$$$,以 $$$n=- \frac{3}{2}$$$:
$${\color{red}{\int{\frac{1}{x^{\frac{3}{2}}} d x}}}={\color{red}{\int{x^{- \frac{3}{2}} d x}}}={\color{red}{\frac{x^{- \frac{3}{2} + 1}}{- \frac{3}{2} + 1}}}={\color{red}{\left(- 2 x^{- \frac{1}{2}}\right)}}={\color{red}{\left(- \frac{2}{\sqrt{x}}\right)}}$$
因此,
$$\int{\frac{1}{x^{\frac{3}{2}}} d x} = - \frac{2}{\sqrt{x}}$$
加上積分常數:
$$\int{\frac{1}{x^{\frac{3}{2}}} d x} = - \frac{2}{\sqrt{x}}+C$$
答案
$$$\int \frac{1}{x^{\frac{3}{2}}}\, dx = - \frac{2}{\sqrt{x}} + C$$$A
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