4. Given 0 ≤ 0 < 2t, solve cos 20 - cos = 0. 0 0, 풍, 풍 0 0, 1, 2 ○ 쓩, 쓩 01.2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 28E
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4. Given 0≤0 < 2π, solve cos 20- cos 0 = 0.
O 0, 2, 4
0 0,
4T
5T
Transcribed Image Text:4. Given 0≤0 < 2π, solve cos 20- cos 0 = 0. O 0, 2, 4 0 0, 4T 5T
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