作者hothero (hothero)
看板trans_math
标题[积分] 两题求旋转体体积
时间Thu Jan 8 21:58:22 2009
1.The base of a solid is the region inside the circle x^2+y^2=4.Find the
volume of the solid if every cross section by a plane perpendicular to the
x-axis is a square.
2.x=√y + 1,y=4,x=0,y=0;about the x-axis
↑画出来的范围令我不知该如何下手>"<
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