2. Show that the equation 2x + sinx 0 has exactly one real root. (Hint: Step 1 show that the equation has at least one real root. Step 2 show that the equation has at most one real root.)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 48E
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2.
Show that the equation 2x + sinx = 0 has exactly one real root.
(Hint: Step 1 show that the equation has at least one real root. Step 2 show that the equation
has at most one real root.)
Transcribed Image Text:2. Show that the equation 2x + sinx = 0 has exactly one real root. (Hint: Step 1 show that the equation has at least one real root. Step 2 show that the equation has at most one real root.)
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