The base radius of a solid hemisphere is r. The hemisphere is insulated. The temperature distribution on the hemispherical surface is u = F(. Derive the expression r^0 * P * acos(A2n) = 4n + 1 * F * P * cos(n * d), where n = 0, 1, 2, ... for the steady temperatures in the solid. Also, show that u(r, e) = 1 when F(e) = 1.