5. Use an algebraic method to solve the following equations. Show all your work for full marks. a) 6sin x – 5cosx – 2 = 0 , where xɛ[0, 21] b) cos2x – 2sinx cos x = - 3, where x € [0, 2n]

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 104E
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Use an algebraic method to solve the following equations. Show all your work. 

5. Use an algebraic method to solve the following equations. Show all your work for full marks.
a) 6sin´x – 5cosx – 2 = 0 , where xɛ[0, 21]
b) cos2x – 2sinx – cos x =
3, where x E [0, 2n]
Transcribed Image Text:5. Use an algebraic method to solve the following equations. Show all your work for full marks. a) 6sin´x – 5cosx – 2 = 0 , where xɛ[0, 21] b) cos2x – 2sinx – cos x = 3, where x E [0, 2n]
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