HOMEWORK 10: 1. sin? 2x = 4 sin? x cos² x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 79E
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НОМEWORK 10:
1. sin? 2x = 4 sin?x cos? x
BAGUI
csc 0– 2 sin 0
2. cot 20
2 cos 0
csc² a
3. sec 2a =
cot² a-1
4. COS 3Ө + cos Ө 3D 4 cos3 Ө — 2 сos Ө
cos x
sin x
5.
sec 2x
= cos 3x
csc 2x
1+cotx _ 1+sin 2x
6.
cot x-1
cos 2x
7. 2 cot 4x = cot 2x – tan 2x
8. tan 6a sec 3a = 2 sin 3a sec 6a
1- cos 4x
9. sec? 2x – 1
1 + cos 4x
csc A csc B
10. csc (A — В)
cotB-cot A
Transcribed Image Text:НОМEWORK 10: 1. sin? 2x = 4 sin?x cos? x BAGUI csc 0– 2 sin 0 2. cot 20 2 cos 0 csc² a 3. sec 2a = cot² a-1 4. COS 3Ө + cos Ө 3D 4 cos3 Ө — 2 сos Ө cos x sin x 5. sec 2x = cos 3x csc 2x 1+cotx _ 1+sin 2x 6. cot x-1 cos 2x 7. 2 cot 4x = cot 2x – tan 2x 8. tan 6a sec 3a = 2 sin 3a sec 6a 1- cos 4x 9. sec? 2x – 1 1 + cos 4x csc A csc B 10. csc (A — В) cotB-cot A
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