9. Consider the equation 2 5cos x + 4cosx = 1. a. Put the equation in standard quadratic trigonometric equation form. b. Use the quadratic formula to factor the equation c. What are the solutions, to two decimal places, where 0° ≤ x ≤ 360°? Show all your work!
9. Consider the equation 2 5cos x + 4cosx = 1. a. Put the equation in standard quadratic trigonometric equation form. b. Use the quadratic formula to factor the equation c. What are the solutions, to two decimal places, where 0° ≤ x ≤ 360°? Show all your work!
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter7: Analytic Trigonometry
Section7.4: Basic Trigonometric Equations
Problem 1E: Because the trigonometry functions are periodic, if a basic trigonometric equation has one solution,...
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