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2nd Edition

James Stewart

Publisher: Cengage Learning

ISBN: 9781133112280

Chapter 11.4, Problem 38E

(a)

To determine

**To show:** The partial derivative of function with respect to *x* and *y,* respectively exists at the point

(b)

To determine

**To explain:** The partial derivative of function with respect to *x* and *y,* respectively are not continuous at