Suppose f is a continuous function defined on (-e, e) for some e > 0 and assume that f(0) = 0 and f(z) - c lim z+0 I for some constant C. Prove that f is differentiable at 0 and find f'(0).
Suppose f is a continuous function defined on (-e, e) for some e > 0 and assume that f(0) = 0 and f(z) - c lim z+0 I for some constant C. Prove that f is differentiable at 0 and find f'(0).
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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Transcribed Image Text:Suppose f is a continuous function defined on (-e, e) for some e>0 and
assume that f(0) = 0 and
f(z)
lim
= C
for some constant C. Prove that f is differentiable at 0 and find f'(0).
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