Verify that the conclusion of Clairaut's theorem holds, that is, u, Uxy = "yx' u = x'y8 – y? With u = x'y8 - y', we have the following. ,7,8 Ux = Uxy Uy Uyx %3D Since u, = uvx Clairaut's theorem holds for u = x7y8 – y7. ху II II II

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