面积 y= 26/5-1/x ,y=x

解答

面积

y = \frac{26}{5} - \frac{1}{x}, y = x

- 2 ln (5) + \frac{312}{25}

十进制

9.26112 \dots

求解步骤

使用面积公式:

\int_{\frac{1}{5}}^{5} \frac{26}{5} - \frac{1}{x} - x d x

解

\int_{\frac{1}{5}}^{5} \frac{26}{5} - \frac{1}{x} - x d x : - 2 ln (5) + \frac{312}{25}

面积为:

= - 2 ln (5) + \frac{312}{25}

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