Let f : R2 → R be a function given by if (r. y) 7 (0,0), xy 1²+y² f(r. y) = if (r. y) = (0.0). Using definitions of partial derivatives, show whether f(r, y) is differentiable at point (0 0
Let f : R2 → R be a function given by if (r. y) 7 (0,0), xy 1²+y² f(r. y) = if (r. y) = (0.0). Using definitions of partial derivatives, show whether f(r, y) is differentiable at point (0 0
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 21E
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