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HAT 2nd Semester Final Review 1. Simplify: 8 a) -4 2 3 b) 8 c)-8 d) 2. Simplify the radical expression: a) 2q 4 2q 7 n n4 b) 36 83 b) 4. Solve: a) x = 1 5 e) - 1 4 32q11n 8 2q 2 4 2q 3 2q 4 2q 3 c) n n2 3. Rationalize the demonimator: a) 4 1 4 d) 16q8 4 2q 3 n8 e) NOT 6 9 2 54 6 2 79 c) 54 6 2 79 d) 54 6 2 83 e) NOT 8 6x 2 3x 1 3x 1 b) x = 1 3 c) x = 5 3 d) x = 5. Perform the multiplication and simplify: 1 3 e) NOT p 2 36 p4 2 2 p 7 p 12 7 p 43 p 6 a) p6 p 6, 4 ( p 3)(7 p 1) b) p6 p 6, 4 ( p 3)(7 p 1) c) p6 p 6, 4 ( p 3)(7 p 1) d) p6 p 6, 4 ( p 3)(7 p 1) e) NOT 6. Perform the division and simplify: 6r 2 19r 3 r 3 2 2 2r 13r 7 2r 9r 4 a) (6r 1)(r 4) 1 r 3, r 7 2 b) (6r 1)( r 4) 1 r 3, r7 2 c) (6r 1)(r 4) 1 r 3, r 7 2 d) (6r 1)(r 4) 1 r 3, r7 2 7. Perform the subtraction and simplify: a) 9x 1 5 x b) 9x 1 x5 9x 1 x5 5 x c) 9x 1 x5 8. Determine the domain of the function f ( x) a) b) c) d) e) e) NOT d) 9x 1 x5 e) NOT 2 ( x 1) 2 All Reals except x = -2 and 1 All Reals except x = 1 All Reals except x = -2 and -1 All Reals except x = 2 and 1 All Reals 9. Find the vertical asymptote(s): f ( x) a) x = -2, x = 5 b) y = 1 1 ( x 2)( x 5) c) y = 0 d) y = 1, y = 0 x 1 10. Find the horizontal asymptote(s): f ( x) 2 x 9 a) y = 1 b) y = 0 c) x = 1 d) x = 1 e) NOT 2 7 x4 d) x = 0 11. Find the horizontal asymptote(s): f ( x) a) x = 4 b) y = 0 c) y = 7 e) NOT e) NOT x3 1 x2 4 b) all reals except x = 2 12. Find the domain: f ( x) a) all reals c) all reals except x = 1 d) all reals except x = 1, 2 e) NOT 13. Find the real zeros of f: f ( x) 6x 3 x2 1 a) 1 2 b) 1 2 c) 1 14. Find the intercepts of: f ( x) a) (0, -2), (14, 0) d) (14, 0) (0, 7 ) 2 15. Graph: f ( x) 1 , 1 2 e) NOT x 14 2x 7 b) (-14, 0) ( e) NOT x2 2 x 2 2x 1 d) 1 , 0) 2 c) (14, 0) (0, 1 ) 2 x3 7 x 2 1 x2 1 c) y = x – 8 16. Find the slant asymptote of: f ( x) a) y = 1 b) y = x + 7 1 17. Evaluate: log 3 27 1 1 a) b) 3 3 d) y = x + 1 c) -3 d) 3 e) NOT c) -3 d) 3 e) NOT 18. Evaluate: ln 3 e a) 1 3 b) 1 3 19. Evaluate log a 18 , given that log a 2 0.2789, log a 3 0.4421 a) 1.1631 b) 0.2466 c) 0.0349 d) 1.4420 d) NOT 2 3 e) NOT 20. Solve for x: 27 x 81 a) 3 4 b) 1 3 c) 4 3 d) 21. Solve for : ln (7 – x) + ln (3x + 5) = ln ( 24x) a) 6 11 b) 7 3 c) 7 , 5 3 d) 6 ,5 11 e) NOT e) NOT 22. Graph: f ( x) log 2 ( x 1) 3 23. Graph: f ( x) 3x 2 1 24. Determine the quadrant in which the terminal side of an angle of 215 lies. a) I b) II c) III d) IV e) It is quadrantal 11 30 49 d) 15 25. Give the reference angle for a) 4 15 b) 7 30 c) 11 30 26. Give the exact value of sec a) 2 b) 3 2 c) 27. Graph: f ( x) 2 cos e) NOT 7 4 3 3 d) 2 2 e) NOT 3x 2 28. Evaluate: arcsin 0 a) 2 b) c) 0 29. Evaluate sin(arctan a) 8 3 b) a) 2 1 cos x 2 e) NOT 3 ) 8 73 8 30. Add and simplify: d) c) 1 1 cos x b) 0 3 55 55 3 73 73 e) NOT d) 2 csc ² x e) NOT d) 1 1 cos x c) 2 cot x csc x 31. Simplify: sec4 x sec 2 x 2 a) 2 tan 4 x b) (sec2 x 2)(tan 2 x) d) tan² x + 2 e) NOT c) 2 tan² x 32. Find all solutions in the interval [0, 2 ): sin 2x = 0 a) 0, b) 0, 2 , , 3 2 c) 3 2 , 2 d) 3 5 7 4 , 4 , 4 , 4 e) NOT 33. Given triangle with A = 47º, B = 63º, and c = 123, find a. a) 88.6 b) 95.7 c) 82.6 d) 112.1 e) NOT 34. Given triangle with A = 74º, a = 59.2, and c = 60.3, find the two possible values of B. a) 78.3º, 101. 7º b) 4.3 º, 27.7 º c) 73.7 º, 106.3º d) 32.3º, 0.3º e) NOT 35. Given triangle with a = 19, b = 4, c = 22, find C. a) 117.4º b) 132.1º c) 87.2º d) 99.7º e) NOT 36. You throw your gum into the street and watch as a car runs over it and the gum gets stuck in the tire. You watch the gum as it goes round and round, making one revolution every 3 seconds. You estimate the tire is 36 inches in diameter. Being incredibly bored that day, you would like to find the formula of the path of the gum so that you can tell anyone who asks where the gum is given the time it has traveled. Which of the following would be that formula: a) f(x) = 18 cos d) f(x) = 18 sin 2 +18 3 2 +18 3 b) f(x) = -18 sin e) NOT 2 +18 3 c) f(x) = -18 cos 2 +18 3 ANSWERS: 1. D 2. B 3. B 4. A 5. B 6. D 7. D 8. B 9. A 10. A 11. B 12. E 13. A 14. A 15. 16. 17. 18. 19. 20. 21. B C B A C B 22. 23. 24. C 25. C 26. A 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. C D D B B B B E C