Solved: 9091. Nondifferentiability? Consider the following
Chapter 12, Problem 91(choose chapter or problem)
9091. Nondifferentiability? Consider the following functions f. a. Is f continuous at 10, 02? b. Is f differentiable at 10, 02? c. If possible, evaluate fx10, 02 and fy10, 02. d. Determine whether fx and fy are continuous at 10, 02. e. Explain why Theorems 12.5 and 12.6 are consistent with the results in parts (a)(d). f 1x, y2 = 2_ xy _
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