Recent content by jarondl

Thanks tiny Tim! Yep.. You were right. About Archimedes, I only find his ideas over a cylinder of the same radius as the sphere. Anyway, thanks for you help

Homework Statement Find the surface area of the surface x^2 + y^2 + z^2 = a^2 , that is outside the two cylinders x^2+y^2=\pm ax. (a>0) Homework Equations ds= \sqrt{1+(Z_x')^2+(Z_y')^2}dxdy The Attempt at a Solution The intersections are clearly four ellipses. I will try to...