Let f(z)=|z+7|^2 Part (a) Using Cauchy-Riemann equations, show that f(z) is not differentiable everywhere. Part (b) Find a point where f(z) is differentiable, if there is any. Part (c) Find a point where f(z) is analytic, if there is any.
Let f(z)=|z+7|^2 Part (a) Using Cauchy-Riemann equations, show that f(z) is not differentiable everywhere. Part (b) Find a point where f(z) is differentiable, if there is any. Part (c) Find a point where f(z) is analytic, if there is any.
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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Question
Let f(z)=|z+7|^2
Part (a)
Using Cauchy-Riemann equations, show that f(z) is not
Part (b)
Find a point where f(z) is differentiable, if there is any.
Part (c)
Find a point where f(z) is analytic, if there is any.
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