10л. 5T +i sin 14 5T 10T +i sin 7 Let 1 = 41 cos and =, = 8 cos 14 Find the following. Write your answers in trigonometric form. Give exact values in your answers (not decimal approximations). JT (a) , = | (cos ( + i sin %3D -0 (cos O +i sin 0) (b) -
10л. 5T +i sin 14 5T 10T +i sin 7 Let 1 = 41 cos and =, = 8 cos 14 Find the following. Write your answers in trigonometric form. Give exact values in your answers (not decimal approximations). JT (a) , = | (cos ( + i sin %3D -0 (cos O +i sin 0) (b) -
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 72E
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