## anonymous one year ago Determine the volume of the solid formed by y = sin x, x=0, x= pi, y = 0, revolving the region bounded by about x = pi

1. anonymous

2. freckles

drawing first: |dw:1436748092575:dw|

3. freckles

|dw:1436748139119:dw|

4. freckles

notice the slices have height y=sin(x)

5. freckles

|dw:1436748279470:dw|

6. freckles

you have all the info you need for your setup

7. anonymous

is it then 2pi * the integral from 0 to pi of (pi-x)*(sinx) ?

8. freckles

yeah $\int\limits_{0}^{\pi} 2 \pi (\pi-x) \sin(x) dx$

9. anonymous

ohh thanks a lot i see it now. You are the best !!

10. freckles

cool stuff :)