求抛物线 y=x^2 与 y=2-x^2 围成的封闭区域的面积，与半径为 1 的圆面积之比

Nicolas2050

The diagram shows a circle and the graphs of both y=x^2 and y=2-x^2.
The shaded area is what percentage of the area of the circle?



ANS:8/(3π)

12306

阴影部分面积
S=4(\(\int_{0}^{1} (2-x^2) dx\)-\(\int_{0}^{1} dx\))=\(\frac 8 3\)

qwerty

你妈的个b，什么也不懂，胡说八道。