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Exercise 2. Let z be a complex number. Then cot(5z – n) is equal to a. cot(5z) b. coth(5z) c. -tanh(5z) d. -tan(5z) e. None of these

Exercise 2. Let z be a complex number. Then cot(5z – n) is equal to a. cot(5z) b. coth(5z) c. -tanh(5z) d. -tan(5z) e. None of these

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.5: Trigonometric Form For Complex Numbers
Problem 18E
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Exercise 2. Let z be a complex number. Then cot(5z – 1) is equal to а. cot(5z) b. coth(5z) c. -tanh(5z) d. –tan(5z) e. None of these
Transcribed Image Text:Exercise 2. Let z be a complex number. Then cot(5z – 1) is equal to а. cot(5z) b. coth(5z) c. -tanh(5z) d. –tan(5z) e. None of these
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