II a.5 cos? =D5

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 106E
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2. Solve the following equations over the interval (-o, 00)
a. 5 cos?
:5
%3D
b.2 cos? 3x + sin3x = 1
c. sec2 x = 2tanx + 4
Transcribed Image Text:2. Solve the following equations over the interval (-o, 00) a. 5 cos? :5 %3D b.2 cos? 3x + sin3x = 1 c. sec2 x = 2tanx + 4
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