37–42 - Using a Half-Angle Formula Find sin cos- and tan - from the given information. 37. sin x = }, 0° < x< 90° 38. cos x = -. 180°

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 8E
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37–42 - Using a Half-Angle Formula Find sin
cos-
and
tan - from the given information.
37. sin x = }, 0° < x< 90°
38. cos x = -. 180° <x< 270°
39. csc x = 3, 90° <x< 180°
40. tan x = 1, 0°<x<90°
41. sec x = , 270° <x< 360°
42. cot x = 5, 180° <x< 270°
Transcribed Image Text:37–42 - Using a Half-Angle Formula Find sin cos- and tan - from the given information. 37. sin x = }, 0° < x< 90° 38. cos x = -. 180° <x< 270° 39. csc x = 3, 90° <x< 180° 40. tan x = 1, 0°<x<90° 41. sec x = , 270° <x< 360° 42. cot x = 5, 180° <x< 270°
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