Question: If a function (x, y) has continuous second partial derivatives throughout an open region R, must the first-order partial derivatives of be continuous on

If a function ƒ(x, y) has continuous second partial derivatives throughout an open region R, must the first-order partial derivatives of ƒ be continuous on R? Give reasons for your answer.

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No the firstorder partial derivatives of do not have to be continuous on R if has continuous second ... View full answer

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