2. Show that the equation 2x + cosx 0 has exactly one real root.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 44E
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not contradict Rolle's theorem ?
2. Show that the equation 2x + cosx =
0 has exactly one real root.
Transcribed Image Text:not contradict Rolle's theorem ? 2. Show that the equation 2x + cosx = 0 has exactly one real root.
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