Question: Prove that there does not exist any function (x, y) such that Consider Clairauts Theorem. af x = xy and af dy || x.

Prove that there does not exist any function ƒ(x, y) such that af x = xy and af dy || x.

Consider Clairaut’s Theorem.

Clairaut's Theorem fxyy = fyxy = fyyx

af x = xy and af dy || x.

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