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Q1: Correct the following items, enhance your answer with a mathematical proof for each item ₁-r (²3) = (²) 2- cos(ix) = cosh(ix) 3-Z* Z= |Z|Z Зл 4- for Z=-1+√3 then arg(2)

Q1: Correct the following items, enhance your answer with a mathematical proof for each item ₁-r (²3) = (²) 2- cos(ix) = cosh(ix) 3-Z* Z= |Z|Z Зл 4- for Z=-1+√3 then arg(2)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.4: Values Of The Trigonometric Functions
Problem 22E
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Q1: Correct the following items, enhance your answer with a mathematical proof for each item ₁-r (²3) = (²) 2- cos(ix) = cosh(ix) 3-Z* Z= |Z|Z 4- for Z=-1 + i√3 then arg(Z) =37
Transcribed Image Text:Q1: Correct the following items, enhance your answer with a mathematical proof for each item ₁-r (²3) = (²) 2- cos(ix) = cosh(ix) 3-Z* Z= |Z|Z 4- for Z=-1 + i√3 then arg(Z) =37
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