2, + 22 22-21 cos 2, – cos z2 = 2 sin sin 2 Z1 + Z2 Cos 2 21-22 sin z1 + sin z2 = 2 sin sin 3z = 3 sin z - 4 sin z 2)

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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Prove that(for all z, z1 , z2 belongs to complex numbers)  

2, + 22
22-21
cos 2, – cos z2 = 2 sin
sin
2
Z1 + Z2
Cos
2
21-22
sin z1 + sin z2 = 2 sin
sin 3z = 3 sin z - 4 sin z
2)
Transcribed Image Text:2, + 22 22-21 cos 2, – cos z2 = 2 sin sin 2 Z1 + Z2 Cos 2 21-22 sin z1 + sin z2 = 2 sin sin 3z = 3 sin z - 4 sin z 2)
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