1.Consider the equation cos θ=-2/3 for 0°≤ θ < 360°. a. Sketch a diagram showing the two possible terminal arms of θ, in standard position b. Determine all possible values of θ, to the nearest tenth of a degree.
1.Consider the equation cos θ=-2/3 for 0°≤ θ < 360°. a. Sketch a diagram showing the two possible terminal arms of θ, in standard position b. Determine all possible values of θ, to the nearest tenth of a degree.
Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter1: Trigonometry
Section1.8: Applications And Models
Problem 5ECP
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1.Consider the equation cos θ=-2/3 for 0°≤ θ < 360°.
a. Sketch a diagram showing the two possible terminal arms of θ, in standard position
b. Determine all possible values of θ, to the nearest tenth of a degree.
2. without using a calculator , determine weather each ratio is possitive or negative
a. sin 150°
b. cos 315°
c. 115°
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