cos x+sin x-e 2 cos x-2 cosh y If f (z) = u + iv is an analytic function of z and u-v = prove that when 폭)=0 cot %3D

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 42E
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cos x+sin x-e
2 cos x-2 cosh y
If f (z) = u + iv is an analytic function of z and u-v =
prove that
when f=
cot
= 0. (
Transcribed Image Text:cos x+sin x-e 2 cos x-2 cosh y If f (z) = u + iv is an analytic function of z and u-v = prove that when f= cot = 0. (
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