9. 2x + cos x = 0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 57E
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Please do only 19
19-20 Show that the equation has exactly one real root.
19. 2x + cos x
20. 2x 1– sin x = 0
Transcribed Image Text:19-20 Show that the equation has exactly one real root. 19. 2x + cos x 20. 2x 1– sin x = 0
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