面积 y= 3/2 x,y=7-x^2

解答

面积

y = \frac{3}{2} x, y = 7 - x^{2}

\frac{1331}{48}

十进制

27.72916 \dots

求解步骤

使用面积公式:

\int_{- \frac{7}{2}}^{2} \frac{3}{2} x - (7 - x^{2}) d x

解

\int_{- \frac{7}{2}}^{2} \frac{3}{2} x - (7 - x^{2}) d x : \frac{1331}{48}

面积为:

= \frac{1331}{48}

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