Solve the following equations for 0≤x≤ 2n: (a) 3 sin³x + 2 sin x-1=0 (b) 4 cos³x + 5 cos x+1=0 (c) 2 tan'x-tan x-1-0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 69E
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Q4)
Solve the following equations for 0 ≤x≤2n:
(a) 3 sin³x + 2 sin x-1=0
(b) 4 cos³x + 5 cos x+ 1 = 0
(c) 2 tan³x-tan x-1=0
(d) sin 2x= cos x
Transcribed Image Text:Q4) Solve the following equations for 0 ≤x≤2n: (a) 3 sin³x + 2 sin x-1=0 (b) 4 cos³x + 5 cos x+ 1 = 0 (c) 2 tan³x-tan x-1=0 (d) sin 2x= cos x
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