## rsst123 one year ago **Will Medal** Calc 3 Can someone help me go through this problem

using this coordinate system

3. Loser66
4. IrishBoy123

|dw:1436712715209:dw| i can't draw to save my life so here is a start in 2D. $$\phi$$ is the azimuth [and $$\theta$$ the polar] from the dV element you have posted - always worth checking integrating using that dV element will give you the volume you'd get by revolution of the shaded area in the drawing - that's how spherical works. so you will need to add in extra for the cone that is missed out.