Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
哪个积分表示将 y = cos x 、 x in [0, 1] 绕y轴旋转（壳）产生的体积？
哪个积分表示将 y = cos x 、 x in [0, 1] 绕y轴旋转（壳）产生的体积？
Natural Language
Math Input
Extended Keyboard
