anonymous
  • anonymous
the region by the line y=x/2. teh x axis, and x=2, is rotated around x axis. find the volume of rotation using disk and shell method.. help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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inkyvoyd
  • inkyvoyd
HELP YOSELF http://www.khanacademy.org/math/calculus/v/solid-of-revolution---part-2
anonymous
  • anonymous
please dont be mean
inkyvoyd
  • inkyvoyd
Ok, fine. Try wolfram alpha.

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anonymous
  • anonymous
i dont know how to ask the question on that website
inkyvoyd
  • inkyvoyd
My bad, wolfram won't do it. http://www.khanacademy.org/math/calculus/v/solid-of-revolution---part-2 seriously gives you the answer to sqrt x around x axis.
anonymous
  • anonymous
buts its x/2
inkyvoyd
  • inkyvoyd
Ok, my bad again.
inkyvoyd
  • inkyvoyd
Can you give me a moment? I'll try to do it. I'm 15 years old though, so xDD
inkyvoyd
  • inkyvoyd
\[\int\limits_{a}^{b} \pi f(x)^2 dx\] is what you are looking for
inkyvoyd
  • inkyvoyd
i.e, \[\int\limits_{0}^{2}\pi x^2/4\]
anonymous
  • anonymous
the second is what i got
anonymous
  • anonymous
what about using the shell metohd
inkyvoyd
  • inkyvoyd
now, you should get\[(\pi)x^3/12|_{0}^{2}\]
inkyvoyd
  • inkyvoyd
I don't have any idea. I'm learning calc rite now. Try, r/cheatatmathhomework (reddit.com)

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