1. Graph y = . A. B. C. D. Hint 2. Write an equation of the function whose graph is shown. A. y = 2 sin B. y = 4 sin C. y = 2 sin D. y = sin 4 Hint 3. Simplify the expression sin x(1 + cot2x) A. sin x tan x B. sin2x C. 1 + cos2x D. csc x Hint 4. Simplify cos B + tan B sin B A. sin B B. cos B C. sec B D. cot B Hint 5. Express using only sin x and cos x. A. B. sin x + cos x C. cos2x D. sin x - cos x Hint 6. Find the exact value of cos if x is between 90° and 180° and sin x = . A. B. C. D. Hint 7. Which expression is equivalent to (sin x + cos x)2. A. 2 csc 2x B. C. cos2x + 1 D. 1 + sin 2x Hint 8. Find the solution for 2 cos x =1 where . A. B. C. D. Hint 9. What is the midline of the function y = 2 sin  4? A. y = 2 B. y = 4 C. y = 4 D. y = 2 Hint 10. Which of the following is an example of a function with a phase shift? A. y = 1 + 3 cos B. y = 3 + cos C. y = 5 sin D. y = 2 sin (  15) Hint 11. Which of the following statements is not true? A. cot  tan B. sec tan = C. sec + cos = sin tan D. csc  sin = cot cos Hint 12. Which of the following statements is false? A. cos ( + 720°) = cos B. sin ( + 360°) = sin C. sin ( + 540°) = sin D. cos (  180°) = cos Hint 13. Which statement is true? A. sin 30° = cos 300° B. cos 225° = sin 45° C. sin 45° = cos (45°) D. cos 135° = sin 45° Hint 14. Solve 2 cos 2 = 1. A. 30°, 150° B. 30°, 330° C. 150°, 210° D. 30°, 150°, 210°, 330° Hint