Solve 55 - 65 odd , please show work

348 Chapter 4 Trigonometry x - 2 In Exercises 55-66, find the exact value of the expression. = arctan 82. arccos 2 (Hint: Sketch a right triangle.) 55. sin(arctan ;) 56. sec(arcsin 5) In Exercises 83 and 84, sketch 5 compare the graph of g with the 57. cos(tan - 1 2) 58. sin cos 5 83. g(x) = arcsin(x - 1) 59. cos arcsin 13, 60. csc arctan( - 12) 61. sec arctan(- 3) 62. tan arcsin(-4)] 84. g(x) = arcsin NIX 63. sin arccos -3 64. cot ( arctan 3) 65. CSC cos-1(13 66. sec sin-1(_ _2) In Exercises 85-90, sketch a grap 85. y = 2 arccos x In Exercises 67-76, write an algebraic expression that is 86. g(t) = arccos(t + 2) equivalent to the expression. (Hint: Sketch a right triangle, as demonstrated in Eva 87. f(x) = arctan 2x