# Minimize surface area - calculus of variations

I can't get rearrange the last equation into a nice form to integrate with respect to x to minimize the surface area.

http://i111.photobucket.com/albums/n149/camarolt4z28/2010-10-17122502.jpg?t=1287336976 [Broken]

http://i111.photobucket.com/albums/n149/camarolt4z28/2010-10-17123734.jpg?t=1287339019 [Broken]

http://i111.photobucket.com/albums/n149/camarolt4z28/2010-10-17122444.jpg?t=1287336976 [Broken]

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