S co) 13. d = 5 sin (3t) 14. d = 4 sin (21) 15. d = 6 cos ( Tt) 16. d = 5 cos 17. d = -3 sin 18. d = -2 cos (21) 19. d = 6 + 2 cos (2mt) 20. d = 4 + 3 sin ( mt)

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