For the following exercises, find exact solutions on the interval [0, 27). Look for opportunities to use trigonometric identities. 50. sin² x - cos²x - sin x = 0 53. cos(2x) - cos x = 0 56. sec² x = 7 59. 4cos²x - 4 = 15cos x 62. 6cos²x+7sin x-8=0 65. cos³ t = cos t SECTION EXERCISES 51. sin² x + cos²x = 0 54. 2 tan x 2- sec² x - sin²x = cos²x 57. 10sin x cos x = 6cos x 60. 8sin x + 6sin x+1=0 63. 12sin²t+cost-6=0 52. sin(2x) - sin x = 0 55. 1- cos(2x) = 1 + cos(2x) 58.-3sin t= 15cost sin t 61. 8cos² 0-3-2cos 0 64. tan x= 3sin x

For the following exercises, find exact solutions on the interval [0, 27). Look for opportunities to use trigonometric identities. 50. sin² x - cos²x - sin x = 0 53. cos(2x) - cos x = 0 56. sec² x = 7 59. 4cos²x - 4 = 15cos x 62. 6cos²x+7sin x-8=0 65. cos³ t = cos t SECTION EXERCISES 51. sin² x + cos²x = 0 54. 2 tan x 2- sec² x - sin²x = cos²x 57. 10sin x cos x = 6cos x 60. 8sin x + 6sin x+1=0 63. 12sin²t+cost-6=0 52. sin(2x) - sin x = 0 55. 1- cos(2x) = 1 + cos(2x) 58.-3sin t= 15cost sin t 61. 8cos² 0-3-2cos 0 64. tan x= 3sin x

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.4: Multiple-angle Formulas

Problem 72E

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