Name _______________________________ Per _____ Chapter 13 Study Guide Evaluate the expression without using a calculator. Leave all answers as fractions or whole numbers. 37 14 1) sin 330 2) cos 4 3) sin 3 4) cos 6 7) csc 840 5) sin (-225) 6) sec 225 5 8) tan 3 9) tan - Sketch each angle 10) –310 17 11) 6 Convert each angle from degrees to radians. 12) 170 13) 790 Convert each angle from radians to degrees. 7 14) 9 5 15) 12 4 16) Give two angles coterminal to the angle 3 . Give the reference angle for each 17) 680 23 18) 4 Identify the period and amplitude of each equation. 19) y = -3 sin (4x) 20) y = 2 cos 5(x + ) period ________ period ________ amplitude ________ amplitude ________ Sketch at least one full period of the graph for each equation. Make sure to include the scale of the x and y-axes. 21) y = 2 + 2cos (4x) 22) y = -1 + 3sin x - 2 23) y = -2sin x Write an equation for the graph shown below 24) 25)