# The Disk Method New Question # 1

• Jun 24th 2009, 06:59 PM
XplicitZero
The Disk Method New Question # 1
Consider the solid obtained by rotating the region bounded by the given curves about the y-axis.

http://www.webassign.net/www14/symIm...2a5d1262fc.gif

Find the volume V of this solid.

Can someone tell me how do i start this problem?

i'm clueless
• Jun 24th 2009, 10:48 PM
zangestu888
Well in doing these types of problems I sugest u sketch the regions and the area bounded by them u can then better visualze the volume of the region firn ur intersecting pooints of the two functions and always ask urswlf which way am I gnna tak slices in my region horizantally or verticcaly in this case it wid be easier to take dy as ur cuts and integrate that way try the problem now with the sketches Gud luck!!!
• Jun 24th 2009, 10:52 PM
zangestu888
Your limits of integration will be from 0 to 3
Denver this is gnna look like a washer u wil have an inner and outer radus find the area function
now try the rest on ur own these types of problems u gota think and imagine :)