Question

Let S be the solid obtained by rotating the region shown in the figure about the y-axis. (Assume a = 5 and b = 2.)

y=ax(x-b)^2
What are its circumference c and height h?
c(x) =
h(x) =

Use shells to find the volume V of S.
V =

Answer 1

\[\Large y=5x(x-2)^2\]So ummm...

Answer 2

V= 32pi/3 ??

Answer 3

I dunno :( I can't figure this one out.
It's worded so strangely..

Answer 4

ok thanks :)