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Let f(z) - 5 | 4, if z ‡ 0, if z = 0 Prove the following: - 1. The function of is continuous at the point z₁ = 0). 2. The Cauchy-Riemann equations are satisfied at Zo = = 0. 3. The function f does not have a complex derivative at zo = 0.

Let f(z) - 5 | 4, if z ‡ 0, if z = 0 Prove the following: - 1. The function of is continuous at the point z₁ = 0). 2. The Cauchy-Riemann equations are satisfied at Zo = = 0. 3. The function f does not have a complex derivative at zo = 0.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 77E
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Let f(z) - 5 | 4, if z ‡ 0, if z = 0 Prove the following: - 1. The function of is continuous at the point z₁ = 0). 2. The Cauchy-Riemann equations are satisfied at Zo = = 0. 3. The function f does not have a complex derivative at zo = 0.
Transcribed Image Text:Let f(z) - 5 | 4, if z ‡ 0, if z = 0 Prove the following: - 1. The function of is continuous at the point z₁ = 0). 2. The Cauchy-Riemann equations are satisfied at Zo = = 0. 3. The function f does not have a complex derivative at zo = 0.
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