Answer
No solution, as $-1 \leq cos\theta \leq 1$
Work Step by Step
$2cos\theta -5 = 3cos\theta - 2$
$-cos\theta = -2 + 5$
$-cos\theta = 3$
$cos\theta = -3$
No solution, as $-1 \leq cos\theta \leq 1$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 6 - Section 6.1 - Solving Trigonometric Equations - 6.1 Problem Set - Page 325: 19
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