Let f be an entire function. Show that (1) if Imf(z) ≥ 1, then f is a constant function. (2) if Ref(z) ≤ 3 for all z, then f is constant.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 52E
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Let f be an entire function. Show that
(1) if Imf(z) ≥ 1, then f is a constant function.
(2) if Ref(z) ≤ 3 for all z, then f is constant.
about complex analysis
Transcribed Image Text:Let f be an entire function. Show that (1) if Imf(z) ≥ 1, then f is a constant function. (2) if Ref(z) ≤ 3 for all z, then f is constant. about complex analysis
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