Thursday, December 24, 2009

Can you have negative volume with washer method?

Find the volume of the solid generated by the region bounded by (x)^.5 and x/3 about the vertical line x=-1.





I got -45/2pi for my answer. Is this correct? Can someone help?Can you have negative volume with washer method?
3


鈭? [ 蟺 (3y + 1)虏 - 蟺 (y虏 + 1)虏 ] dy = 41.4 蟺 = 130.06


0





-Can you have negative volume with washer method?
no, any volume is of course positive

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