Question

How do I find the volume revolved around the y axis? (calculus)

Answer 1

I know that for volume revolved around the x axis, the formula is :
\[V=\int\limits_{a}^{b} (f(x))^2 - (g(x))^2 dx\]
f(x)=top function g(x)=bottom

Answer 2

oh and pi in front of the integral.