Area and Volumes of Solid of Revolution

[Oman]

1. find the area common to r=1+cos@ and r=3^(1/2) sin@

2. find the volume generated by rotating the region bounded by
(x-1)^2 + (y-2)^2 = 4 around
a. x axis
b. y -axis
c. x = 3
d. y = 4

 

[AiRAVATA]

So? What have you done?