Let , = cos-+i sin and z, = cos-+isin 6 Express in the form : =a+bi

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.5: Product-to-sum And Sum-to-product Formulas
Problem 12E
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Answer the questions using ONLY exact values, NO decimals.

coisin and :, =cos+isin
and 2, = cos–+isin-
4
a. Let = cos
Express
b.
in the form z = a+bi
Transcribed Image Text:coisin and :, =cos+isin and 2, = cos–+isin- 4 a. Let = cos Express b. in the form z = a+bi
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