作者caxz (虚幻梦影)
看板trans_math
标题[积分] 旋转体体积
时间Wed Jun 20 15:41:22 2007
(1)
the region R is bounded by y=(x)^1/2 , y=1 and x=4
求:该区域绕y=1旋转的旋转体积
(2)
类似:
the region R is bounded by y = 1/x, y=x^2 and x=2
求R绕x=2的旋转体体积
感激....
请教一下如何摆出正确的积分形式
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