= (a) (10 points) Show that the function f (x) x² sin (1/x) for x = 0 and f (0) = 0 is differentiable everywhere but the derivative f'(x) is not continuous at one point. [Hint: Consider lim→0 f'(x) .]
= (a) (10 points) Show that the function f (x) x² sin (1/x) for x = 0 and f (0) = 0 is differentiable everywhere but the derivative f'(x) is not continuous at one point. [Hint: Consider lim→0 f'(x) .]
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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(a) (10 points) Show that the function f (x) x² sin (1/x) for x = 0 and f (0) = 0 is
differentiable everywhere but the derivative f'(x) is not continuous at one point. [Hint:
Consider lim→0 f'(x) .]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe99fe633-2e82-4dde-a878-82e2251a369a%2F401896d1-9037-4573-84e7-5824ba00c9c9%2Fcfw0ms_processed.jpeg&w=3840&q=75)
Transcribed Image Text:=
(a) (10 points) Show that the function f (x) x² sin (1/x) for x = 0 and f (0) = 0 is
differentiable everywhere but the derivative f'(x) is not continuous at one point. [Hint:
Consider lim→0 f'(x) .]
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