Determine if the function satisfy the Cauchy-Riemann equation. 1. f(z) = cos2(z)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 67E
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Determine if the function satisfy the Cauchy-Riemann equation.

1. f(z) = cos2(z)

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