1 MATH 1720 PreCalculus II MWF . . . . . 11:15 am – 12:10 pm . . . . . Warf 104 . . . . . FALL / 2009 https://elearn.volstate.edu Mr. Ondis Bible Associate Professor of Mathematics http://www2.volstate.edu/OBible DESCRIPTION: Designed as a course for students who plan to major in mathematics and/or science and are not prepared to take calculus. Topics include the trigonometric functions of the acute and general angle, applications of right triangles, identities, related angles and the reduction formula, radian measure, graphs and graphical methods of the trigonometric functions, applications, inverse trigonometric functions. PREREQUISITES: MATH 1710 with a grade of C or better or MATH 1130 with a grade of A and an acceptable placement score. (Same as RODP MATH 1720) TEXTBOOK: MATH 1720 Bundle: Algebra and Trigonometry with Analytic Geometry, (Custom 12th Edition) Swokowski and Cole, WebAssign Access Code, Presentations CD. Optional Supplementary Text: Student's Solutions Manual, Cole. Copies of this book and supplement are available for purchase in the VSCC Bookstore or Online. INSTRUCTOR: Ondis Bible, Associate Professor of Mathematics, Office Warf-100H, Phone (615) 230-3386 or ext. 3386 at (615) 741-3215 or (615) 452-8600 or (888) 335-8722, FAX (615) 230-3292, Email ondis.bible@volstate.edu Address: VSCC, 1480 Nashville Pike, Gallatin, TN 37066-3188 OFFICE HOURS: Posted beside office door (Warf 100H) and on the Internet. Go to http://www2.volstate.edu/OBible and click on [Office Hours]. GENERAL EDUCATION GOAL The general education goal of this course is to expose students to systems of mathematical logic. GENERAL EDUCATION OUTCOMES As a result of successfully completing this course, students will have demonstrated an acceptable level of mastery of the basic concepts and principles of trigonometry and an understanding of mathematical logic necessary to apply these concepts and principles to problem solving. Acceptable mastery of the course contents will indicate a trigonometry background necessary to pursue further course work in mathematics and other areas in which Pre-Calculus II is a prerequisite. OTHER GOALS This course also serves to develop effective communication skills, particularly in reading and understanding directions. OUTCOME STATEMENTS Upon completion of this course the student will have demonstrated an acceptable ability to: 1. 2. 3. 4. Define a trigonometric angle and its component parts. Define the standard position of an angle. Know the definitions of the six trigonometric functions. Draw an angle in standard position, given one function of that angle, and find the other trigonometric functions. 5. Find the values of the six trigonometric functions for multiples of 6. 7. 8. 9. 10. 11. 12. / 6 and / 4. Know the sign of each trigonometric function in each quadrant. Define cofunctions. Know the cofunction identities. Determine the correct number of significant digits when rounding sides of a triangle. Given an angle, find one of its functions. Given a function of an angle, find the angle. Find the values of trigonometric functions by using a calculator. 2 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. Solve simple problems involving right triangles. Distinguish between angles of elevation and depression. Solve problems using angles of elevation and depression. Determine the bearing of a line. Memorize the basic trigonometric identities. Prove other identities by using the basic identities. Find values of some trigonometric functions, from others which are known, by using basic identities. Distinguish between identities and conditional equations. Define related angles. Reduce angles to functions of an acute angle. 23. Memorize and use the trigonometric functions of 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. ( ). Solve problems using the cofunction identities. Convert radians to degrees and degrees to radians. Compute arc length on a circle. Given an angular speed and a radius, find linear speed. Given angular speed, radius, and time, find total distance traveled. Given speed and radius, find angular speed. Given speed, radius, and time, find total amount of rotation. Sketch the graphs of the six trigonometric functions. Know the meaning of period, cycle, increasing and decreasing functions. Give the domain, range, and period of the six trigonometric functions. Know the meaning of an identity, equivalent equation, and conditional equation. Find solution sets of trigonometric equations. (0, 2 ). (0, 360). 36. Solve simple trigonometric equations not requiring the use of tables or a calculator, finding all solutions, or all solutions in 37. Solve simple trigonometric equations requiring the use of tables or a calculator, finding all solutions, or all solutions in 38. 39. 40. 41. 42. 43. 44. Know the identities involving the sine, cosine, and tangent of the sum or difference of two real numbers. Compute using the trigonometric identities. Prove other identities by using these identities. State the double-angle and half-angle formulas. Use the double-angle identities to find function values of twice an angle when one function value is known for that angle. Use the half-angle identities to find the function values of half an angle when one function value is known for that angle. Simplify certain trigonometric expressions using the half-angle and double-angle formulas. 45. Solve equations containing trigonometric functions of 2 , / 2, 3 , etc. 46. Solve equations containing trigonometric functions of different quantities. 47. Solve equations of the form, a sin dx b cos dx c. 48. Solve trigonometric equations by factoring or using the quadratic formula. 49. Know the meaning of the terms, amplitude, period, and phase shift. y a sin (bx c) and y a cos (bx c). Sketch the graphs of y a sin (bx c), y a cos (bx c), and y a tan bx. Sketch graphs of y a b sin( cx d ) and y a b cos( cx d ) for various values of the constants a, b, c, and d. 50. Give the amplitude, period, and phase shift of 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. For functions like these, determine the amplitude, period, and phase shift. Know the Law of Sines and the Law of Cosines. Use the Law of Sines to find a side of a triangle. Use the Law of Sines to solve any triangle, given a side and two angles. Use the Law of Sines to solve triangles, given two sides and an angle opposite one of them, finding two solutions when they exist, and recognizing when a solution does not exist. Solve applied problems requiring the use of the Law of Sines. Use the Law of Cosines to find a side of a triangle. Use the Law of Cosines to find an angle of a triangle. Use the Law of Cosines, with the Law of Sines, to solve any triangle, given two sides and the included angle. Use the Law of Cosines to solve any triangle, given three sides. Solve applied problems requiring use of the Law of Cosines. Find all parts of a triangle by using the Law of Sines, Law of Cosines, or both. Find the area of a triangle under the following conditions: a. If 2 sides and the included angle are given. b. If 3 angles and 1 side are given. c. If 3 sides are given. Know the definition of an inverse relation and inverse function. Be familiar with the inverse functions corresponding to y = sin x, y = cos x, & y = tan x. Given a number a, find all values of arcsin a, arccos a, and arctan a, in degrees---also in radians if a is a number for which use of a table or calculator is not required. Immediately simplify expressions such as sin arcsin x, to x. Simplify expressions like arcsin sin x. If x is in the domain of the inverse function, immediately simplify to x. Simplify expressions involving combinations such as sin arccos (1/2) without using tables or a calculator. Simplify expressions such as sin arctan (a/b) by drawing a triangle and reading off appropriate ratios. Use trigonometric identities to simplify expressions involving combinations of functions when appropriate. Define Principal Values for the inverses of the trigonometric functions. Find Principal Values of the inverses of the trigonometric functions. 3 TOPICAL OUTLINE The Trigonometric Functions Trigonometry Directed Segments Trigonometric Angles Standard Position of an Angle Trigonometric Functions of an Angle Trigonometric Functions of an Acute Angle Cofunctions Variation of the Functions of an Acute Angle The Trigonometric Functions of 30, 45, 60 Approximations and Significant Figures A Table of Trigonometric Functions The Solution of Right Triangles Angles of Elevation and Depression Bearing of a Line Vectors Trigonometric Identities The Fundamental Relations Algebraic Operations with the Trigonometric Functions Identities and Conditional Equations Trigonometric Identities Related Angles Reduction to Functions of an Acute Angle Trigonometric Functions of Radian Measure The Radian Radians and Degrees Length of a Circular Arc The Circular Functions Linear and Angular Velocity ( ) Graphs of the Trigonometric Functions Periodic Functions Variations of the Sine and Cosine Variation of the Tangent Graphs of the Trigonometric Functions Trigonometric Equations Solving a Trigonometric Equation Graphical Methods The Graph of y = a sin bx The Graph of y = a sin (bx + c) The Graph of y = sinn x Sketching Curves by Composition of y-Coordinates The Graph of y = a sin x + b cos x Functions of Two Angles Functions of the Sum of Two Angles sin (A + B) and cos (A + B) tan (A + B) sin (A - B), cos (A - B), and tan (A - B) Double-Angle Formulas Half-Angle Formulas Inverse Trigonometric Functions Inverse Trigonometric Relations Inverse Trigonometric Functions Operations Involving Inverse Trigonometric Functions Oblique Triangles The Law of Sines Applications of the Law of Sines: SAA The Law of Cosines Applications of the Law of Cosines: SAS and SSS ASSESSMENT: The degree to which the general education goal of this course is achieved will be determined by the cumulative assessment of the course outcomes. Further assessment of the achievement of this goal and of the instructor will be provided by means of a student questionnaire. The degree to which skills in effective communication have been developed can only be assessed to a limited extent. However, poor skills in reading and understanding directions will result in lower grades on examinations. Outcome statements will be assessed by homework assignments, short quizzes, major tests, and a comprehensive final examination. ADA STATEMENT: For students with disabilities: It is the student’s responsibility to self-identify with the Office of Disability Services to receive accommodations and services in accordance with The Americans with Disabilities Act (ADA). Only those students with appropriate documentation and who are registered with the Office of Disability Services will receive accommodations. For further information, contact the Office of Disability Services at (615) 230-3472, TDD (615)-230-3488, or visit the office which is located in Room 108, Wood Campus Center. EQUAL OPPORTUNITY STATEMENT: Volunteer State Community College is an equal opportunity Affirmative Action Educational Institution. No person shall be excluded from participation in, be denied the benefit of, or be subjected to discrimination under any program or activity of the College because of race, color, national origin, age, or handicap. The college also complies with the Age Discrimination in Employment Act of 1967, as amended and with the Vietnam Era Veterans' Readjustment Act of 1974. The commitment to equal opportunity applies to all aspects of recruitment, employment and education of individuals at all levels throughout the College. 4 COURSE POLICIES AND PROCEDURES WEB-ENHANCED FORMAT: Some components of the course will be administered online. You may use any computer that has Internet access --- at your home, workplace, or one of the VSCC computer labs. Go to https://elearn.volstate.edu to enter the course. Your Username is the same as your VSCC Student Email. Your Password is the same as your Pride Online password. ATTENDANCE: Prompt and regular attendance is expected. Attendance will be recorded for each class meeting. Absences in excess of five could result in the student being administratively withdrawn from the course by the instructor. (See the VSCC Catalog.) Students on financial aid are reminded that not attending class may result in the requirement that grant money be repaid. TARDINESS is defined as entering the room after the official starting time for the class. Two instances of tardiness will count as one absence. It is the responsibility of a student who is tardy, at the end of the class, to ask the instructor to modify the attendance record. Tardiness is considered an avoidable class disruption; persistent tardiness will not be tolerated. Any student who already has two instances of tardiness must get to class on time --- or face the possibility that your grade will be adversely affected (unless you are late due to an unexpected emergency that can be documented). LEAVING CLASS EARLY (before dismissal by the instructor) is permitted in emergency situations. In non-emergency cases, such as a doctor’s appointment, the student should notify the instructor at the beginning of class that he/she will be leaving early and should sit close to the door in order to minimize disruption to the class. The INCLEMENT WEATHER POLICY for this class is as follows: If VSCC is officially open, this class will meet as scheduled, all assignments will be due, and any scheduled tests or quizzes will be given. If VSCC is officially closed, all assignments or tests scheduled for that day are automatically rescheduled for the next regular class meeting. If you miss class, or need additional instruction, view the relevant online PowerPoint Presentation before attempting the homework. If you have technical problems with your computer or the online components of this course, get the necessary assistance immediately. Call the VSCC Help Desk, ext. 3367. To log into the online component of the course, go to https://elearn.volstate.edu and log in to D2L, our online (web-enhanced) course delivery system. Your Username is the same as your VSCC Student Email. Your Password is the same as your Pride Online password. CALCULATORS: A scientific calculator is required. A graphing calculator is permitted (nothing stronger than a TI-84), but not necessary. Hand-held computers and programmable computer-like calculators (like the TI-89 or TI-92) are not permitted. Sharing a calculator between students is not permitted on tests or quizzes. HOMEWORK: Any student who has not completed the assigned homework before a scheduled quiz or test will be at a distinct disadvantage, and will be graded more harshly. For those who have completed all relevant homework by its due date, there will be EXTRA CREDIT available on the next Test. Doing the assigned homework is absolutely essential for students to learn the skills necessary to successfully complete this course. Any student who does not successfully complete at least 70% of the relevant homework may be denied access to a quiz or test and is not eligible for any Extra Credit and/or Grading Curve that might otherwise be available. For more information on Homework, see “Homework Assignments” attached to the end of this syllabus. NOTE: Doing the online Mod Checks and online Discussions is NOT REQUIRED in this class. 5 QUIZZES: All quizzes will be online (multiple choice and/or short answer). Quiz problems must be worked on paper with answers submitted online to the instructor by the stated deadline. The textbook, homework, and course notes may be used as a resource when doing a quiz, but assistance from another person is not permitted. On the designated quiz date, go to https://elearn.volstate.edu and log in to D2L. Your Username is the same as your VSCC Student Email. Your Password is the same as your Pride Online password. A score of zero will be assigned for each quiz not completed and submitted by the stated deadline. Each student's lowest quiz grade will be dropped. Credit may be given for a late quiz at the discretion of the instructor, provided the student contacts the instructor in advance to offer a legitimate explanation and request an extension. TESTS: There will be four major tests (non-cumulative) and a comprehensive final exam. Tests 1, 3, and 4 will be online, but Test 2 and the Final Exam will be done on paper in the classroom. Students are required to be present for all on-campus tests. A student who must miss a test due to an emergency should make every attempt to notify the instructor prior to the time of the test. Assistance from another person is never permitted on Tests. Anyone caught CHEATING on a test will receive a grade of zero and may face other punitive measures. MAKE-UP TESTS will be given only when the student's absence is due to an unexpected emergency and is explained by documentation from the appropriate authority (doctor, judge, etc.). Make-up tests, if allowed, will be harder than the regular test. A score of zero will be assigned for the missed test if not excused by the instructor. Final exams must be taken at the scheduled time and will not be returned to the student. There will be no exemptions from taking the Final Exam. GRADES: The final numerical grade will be determined according to the following weighted components. Tests 1, 3, & 4 = 10% each Quizzes (lowest dropped) = 15% Test 2 = 15% Homework = 10% Final Exam = 25% Participation (in class) = 5% Letter grades will be assigned according to the following numerical grade intervals. 90.00 80.00 70.00 60.00 00.00 - 100 + 89.99 79.99 69.99 59.99 = = = = = A B C D F Favorable or unfavorable determination of borderline grades will be significantly influenced by ATTENDANCE and HOMEWORK! CLASS DISRUPTIONS: An affective mathematics learning environment will enhance (rather than detract from) a student's (and instructor's) ability to concentrate. Therefore, it is the goal of this instructor to provide all students with a relaxed, supportive classroom atmosphere free of unnecessary distractions. Hence, any student who unnecessarily disrupts class (by way of persistent tardiness, unauthorized talking, and the like) is subject to disciplinary action. Cell phones must be turned off before coming to class. 6 CHEATING: Students enrolled in any Volunteer State Community College Course will abide by the policy regarding academic misconduct found in the Student Handbook at http://www.volstate.edu/StudentHandbook/conduct.html paying particular attention to section C.(2). TUTORIAL ASSISTANCE: Trained tutors are available in the Math Lab (Warf 123) or by calling extension 3387. More information, such as Lab hours are posted on the Math Lab web site at http://www.volstate.edu/MathScience/Lab/ . A student may contact the instructor during regular office hours in Warf 100H or by calling (615)741-3215 or (615)452-8600 or 1-888-335-8722, extension 3386. For online interaction with the instructor, use the email component of D2L at http://elearn.volstate.edu . MATH 1720 Section V01 Online (Also MATH 1830 and MATH 1910): Students enrolled in the Online section (V01) of these courses will get their primary instruction by viewing the animated online PowerPoint presentations. Students enrolled in a traditional lecture section are encouraged to view these presentations as needed for additional tutorial assistance. This may be done anywhere the student has access to a personal computer linked to the Internet, including those in VSCC computer labs. You may view any of these online presentations at http://www2.volstate.edu/obible . HOMEWORK ASSIGNMENTS MATH 1720 TEXTBOOK: Algebra and Trigonometry with Analytic Geometry (12th Ed.), Swokowski and Cole For most of the homework assignments in this course you are required to use the Online Homework feature of WebAssign. If you have not enrolled in WebAssign, go back to the course Orientation in D2L, click on CONTENT, and click on "Enroll in WebAssign." Homework assignments in WebAssign consist of algorithmically generated problems, tied to the course textbook. Homework must be submitted by 11:59 pm (Central time) on the due date. The due date for each Homework assignment is listed in the D2L Events Calendar. An individual student who occasionally may need additional time to complete an assignment may obtain an automatic 2-day extension up to 7 days after the due date. A second extension on an assignment may be granted manually in extreme cases. A penalty of up to 5 points may be assessed for each extension. You may submit an assignment up to 3 times. Your last submission will be automatically graded and recorded. Homework grade totals will be transferred from WebAssign to D2L Grades within a week after each major Test. Lessons 6, 7, 23, and 30 must be done on paper and must be turned in to the Instructor. Any student work that is to be faxed or scanned should be written in dark pencil or black, erasable ink. All graphs must be done on graph paper (or copy paper, if done and printed from a graphing utility). Lessons 10, 19, 28, and 35 (Reviews) and the Final Review are recommended (not required), and are NOT to be turned in. 7 LSN 0 SECTION NOTE: Ch 1 = 6.x Ch 2 = 7.x Ch 3 = 8.x ASSIGNMENT COUNT Study the Geometry Definitions Review. This consists of definitions from Geometry that students are expected to know throughout the course. Click on [COURSE CONTENT], then [VIEW ... PRESENTATION ...] in any of the Modules for a link to Lesson 0. Study the definitions. There is no homework to hand in for Lesson 0 (Geometry Review) and no Keyword to submit. 1 6.1 WebAssign Homework 01 32 2 6.1 WebAssign Homework 02 22 3 6.1 WebAssign Homework 03 16 Quiz 1 Quiz 1 covering textbook section 6.1 4 6.2 WebAssign Homework 04 38 5 6.2 WebAssign Homework 05 13 6 6.2 Do this assignment on paper (no WebAssign submission). 14 p425 (36ab,37a,38b,39,40,42,43,45,49,52,54,55,56) 7 6.2 Do this assignment on paper (no WebAssign submission). 11 p425 (41,44,48,58,59,60,61,63,64,65,66) 8 6.2 WebAssign Homework 08 58 9 6.2 WebAssign Homework 09 26 Quiz 2 10 REVIEW 1 Quiz 2 covering textbook section 6.2 OPTIONAL: Do this assignment on paper (no WebAssign submission). p492 (1-18,21-24,28,29) p410 (37a,43,44) p429 (91) TEST 1 Test 1 covering lessons 1 through 10 11 6.3 WebAssign Homework 11 46 12 6.3 WebAssign Homework 12 20 13 6.3 6.4 WebAssign Homework 13 42 14 6.4 WebAssign Homework 14 36 15 6.4 WebAssign Homework 15 33 Quiz 3 Quiz 3 covering textbook section 6.3 & 6.4 8 LSN SECTION 16 6.5 WebAssign Homework 16 32 17 6.5 WebAssign Homework 17 37 18 6.5 6.6 WebAssign Homework 18 23 Quiz 4 19 REVIEW 2 ASSIGNMENT COUNT Quiz 4 covering textbook section 6.5 & 6.6 OPTIONAL: Do this assignment on paper (no WebAssign submission). p492 (19,20,25-27,30-56) (45-56) Find the amplitude (or write none), period, phase shift, and interval of one cycle. Then find equations of two successive vertical asymptotes and the general equation of all asymptotes (or write none). Using the approximate same scale on both axes, label the x-axis and the y-axis, then plot 3 to 5 points, and graph one cycle. TEST 2 Test 2 covering lessons 11 through 19 20 6.7 WebAssign Homework 20 19 21 6.7 WebAssign Homework 21 20 22 6.7 7.1 WebAssign Homework 22 15 23 7.1 Do this assignment on paper (no WebAssign submission). 8 p506 (13,15,16,19,25,30,36,41) 24 7.1 7.2 Quiz 5 25 26 27 7.2 7.2 7.3 7.2 7.3 Quiz 6 WebAssign Homework 24 16 Quiz 5 covering textbook section 6.7 & 7.1 WebAssign Homework 25 48 WebAssign Homework 26 29 WebAssign Homework 27 11 Quiz 6 covering textbook section 7.2 & 7.3 9 LSN SECTION ASSIGNMENT 28 REVIEW 3 OPTIONAL: Do this assignment on paper (no WebAssign submission). COUNT p495 (57-60,62,64,67) p565 (1-6,9-14,17,18,23-29,45-50) (23-29) Find the solutions of each equation that are in the interval [0o, 360o). TEST 3 29 30 Test 3 covering lessons 20 through 28 7.4 WebAssign Homework 29 7.4 Do this assignment on paper (no WebAssign submission). 20 9 p540 (4,15,17,25,26,31,33) 1. Express cos 64 in terms of sin 32 . 2. Express sin 185 in terms of cos 370 . 31 7.6 WebAssign Homework 31 15 32 7.6 WebAssign Homework 32 12 Quiz 7 Quiz 7 covering textbook section 7.4 & 7.6 33 8.1 WebAssign Homework 33 18 34 8.2 WebAssign Homework 34 25 Quiz 8 35 REVIEW 4 Quiz 8 covering textbook section 8.1 & 8.2 OPTIONAL: Do this assignment on paper (no WebAssign submission). p565 (7,8,15,16,19-21,51-56,59-70) p629 (1-10,40,43) TEST 4 FINAL REVIEW Test 4 covering lessons 29 through 35 OPTIONAL: Do this assignment on paper (no WebAssign submission). Download and print this Review; do all 35 problems (NOT to be turned in). Also study your Tests (1 - 4) and Quizzes (1 - 8). FINAL EXAM Comprehensive