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13. , If 0≤0≤2π the minimum value of 1+2 cos- 1+2 cos / is A. - 2 14. B. 0 C. 1 If 0

13. , If 0≤0≤2π the minimum value of 1+2 cos- 1+2 cos / is A. - 2 14. B. 0 C. 1 If 0

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.5: Trigonometric Graphs
Problem 70E
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13. , If 0≤0≤2π the minimum value of 1+2 cos- 1+2 cos / is A. - 2 14. B. 0 C. 1 If 0<x<y<, which of the following MUST be true? D. 1 I. sin x<sin y II. cos x <cos y III. sin x<cos y A. I only B. I and II only C. I and III only D. I, II, and III
Transcribed Image Text:13. , If 0≤0≤2π the minimum value of 1+2 cos- 1+2 cos / is A. - 2 14. B. 0 C. 1 If 0<x<y<, which of the following MUST be true? D. 1 I. sin x<sin y II. cos x <cos y III. sin x<cos y A. I only B. I and II only C. I and III only D. I, II, and III
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