# Thread: [SOLVED] Surface Area using integration

1. ## [SOLVED] Surface Area using integration

How do you find the surface area of the ellipsoid obtained by rotating the ellipse x=acos(theta), y=bsin(theta) About the x-axkis.

2. Using the formula below?

Although youre gonna have to replace 1 with [dx/d(theta)]^2 and (dy/dx)^2 with [dy/d(theta)]^2 (because you are given parametrics)