Answer with confident correct answers ( Double check to see if the answers are correct!)

5 TT 2TT 20TT 4TT 271 137 A. B. 3' 3 ' 3 3' 3 3 4TT 14n AT 27 14n C. - , 2Tt, D. N 3 3 ' 3 ' 3 10n 2nt 13n E. F. None of the above 3 3 3Sketch each of the following angles in standard position and then specify the reference angle or reference number. 17. (a) 240 (10) -30 (C) 60 18. (a) 315 (b) 150' (c) -120 19. (2) 7 TE (b) 5 TO (c) 6 3 4 5 TT 20. (a) (c) 6 37 7 21. (a) 840 (b) -660 6 22 (a) (b) -780 (c) 1 17 3 43 Sketch each of the following angles in standard position and then specify the reference angle or reference number. 17. (a) 240 (1) -30' (c) 60 18. (a) 315 (b) 150 (c) -120 (b) 5 TC 19. (c) 6 3 4 5 TE 20. (a) (b) (c 3 4 6 21. (a) 840 (b) 660 O 1 1 16 (b) -780 (c) 3Name the quadrant in which the given conditions are satisfied. 29. sin (0) > 0, cos 30. sine o, sec (0) > 0 31. cot (0) > 0, sec (8) 0, cot (0) > 0Rewrite each expression in terms of its reference 5 angle, deciding on the appropriate sign (positive or negative). For example, sin (240 ) = -sin (60) tan = tan 3 sec (-315 ) - sec (45 ) COS = -COS 6 53. (a) cos ( 300.) (b) tan (135 ) 54. (a) sin (b) cot (210) 55. (a) sin (140) () sec 3 ) 56. (a) csc(-190) (b) cos 1 17 6Find three angles, one negative and two positive, that are coterminal with each angle below. 9. a 50 (b) -200 10. (a) 300 830 1. 2 17 (a) (b) 5 2 12. (a) (b) 3 93. Problem 4.3.20: Give the reference angle for each. A. TC 4 6 B. W / N C. W /y D. E. TO 3 4 F. None of the above\fEvaluate the expressions on the left and find the right answer from the box, Each answer choice ma used 0, 1 or more times. Do not use a calculator. A. O B. -1 11. 3cot (-450 ) - 2tan (1350) C. -2 12. 5 tan ( 2250 ) + 4sin (90) T M O 2 -V3 13. 2sin 210 ) -4cos(120) G . cos(150 )+ sin 240) H . - V3 / 2 14 . I . 1 3 / 2 J. Undefined 15. 2 sec 360 + 3tan (180) K. None of theseEvaluate the expressions on the left and find the right answer from the box. Each answer choice may be used 0, 1 or more times. Do not use a calculator. A. 0 B. -1/2 6. sin 6 C. 1/2 D. -1 7. tan 3 E. 7 1 3TC F . -V3 8. sin + cos 2 G. V3 cos 5 TT H. -3/3 9 . 3 + sin (-7 ) I. 3 /3 J. -V3/2 10. tan 4 + csc K. V3 / 2 L. undefined4. Problem 4.3.32 A B. II III D. IV2. Problem 4.3.18: Give the reference angle for each. A 450 300, 60 B. -450, 30, 60 C. 459 309 30 D. 450, 30, 60 E. 450 60 30 F. None of the above