Find the fourth roots of -81i. 3(cos(¹) + i sin (¹)) 8 3(cos(¹5)+ i sin (¹5)) 8 8 3(cos(3) + i sin (3)) 3(cos(3) + i sin (3)) 3(cos()+ i sin()) 9(cos(3) + i sin (3)) 3(cos(11)+ i sin (1)) 16 16 □9 (cos (7) + i sin()) 9
Find the fourth roots of -81i. 3(cos(¹) + i sin (¹)) 8 3(cos(¹5)+ i sin (¹5)) 8 8 3(cos(3) + i sin (3)) 3(cos(3) + i sin (3)) 3(cos()+ i sin()) 9(cos(3) + i sin (3)) 3(cos(11)+ i sin (1)) 16 16 □9 (cos (7) + i sin()) 9
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Transcribed Image Text:Find the fourth roots of -81i.
3(cos(¹) + i sin (¹))
8
3(cos(¹5)+ i sin (¹5))
8
8
□
3(cos(3) + i sin (3))
3(cos(3) + i sin (3))
3(cos()+ i sin (7))
9(cos(3)+isin (3))
8
3 (cos(1) + i sin (1))
16
□9 (cos (7) + i sin())
9
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