Find if 21 21 = 6 57 [cos + i sin COS 22 = 2√/3 [cos ³ O Simplify as much as possible. 13T √3 cos (-12 F) - 3 3 3T ³7 + i sin 2 5п 12 O√3 (co COS [cos(-1) + sin(-1)] 12 12 O √3 (cos 137 + i sin 13п CO 12 13п 12 + i sin(-137)] 13T 12 + i sin 137) 12

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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Question
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Find if
21
21 = 6 57
[cos + i sin
COS
22 = 2√/3 [cos ³
O
Simplify as much as possible.
13T
√3 cos (-12 -) +
³7 + i sin
5п
12
O√3 (co
COS
O √3 (cos 137 + i sin
13п
CO
12
13п
12
[cos(-1) + sin(-1)]
+ i sin(-137)]
3T
2
13T
12
+ i sin 137)
12
Transcribed Image Text:Find if 21 21 = 6 57 [cos + i sin COS 22 = 2√/3 [cos ³ O Simplify as much as possible. 13T √3 cos (-12 -) + ³7 + i sin 5п 12 O√3 (co COS O √3 (cos 137 + i sin 13п CO 12 13п 12 [cos(-1) + sin(-1)] + i sin(-137)] 3T 2 13T 12 + i sin 137) 12
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