Trigonometry

• PERFECT MATERIALS to supplement your child's learning, especially if he/she is in INTEGRATED MATH.
• EXCEPTIONAL for inspiring your child to GET AHEAD and EXCEL in math.
• GREAT for helping students who struggled in math CLARIFY and REVIEW CONCEPTS.
• Contains ESSENTIAL lessons for building a STRONG FOUNDATION in math, so your child can succeed in PRE-CALCULUS/TRIGONOMETRY, CALCULUS and BEYOND.
• For a fraction of the price, your child is guaranteed to learn more from this book than a traditional textbook, as it is full of COMPUTATIONAL TRICKS and IDEAS.
• It is a MUST-HAVE for all students who want to DEVELOP the CONFIDENCE and ability to perform mathematical tasks at a HIGH LEVEL.
• I has over 24 years of tutoring experience. I tutor students from 1st grade to college. My past students include those from MIT, U-Penn, UC Berkeley, and more.
• In addition to having a DOUBLE-MAJOR in Math and Computer Science as an undergrad, I have a MASTER degree from UCLA.
• Updated version include bonus questions and typos/errors fixed.
• Below is the table of content. Get ready to have your mind blown.

Table of Content:
Lesson 1: The Six Trigonometric Functions 1
Lesson 2: Radian Angles 9
Lesson 3: The Unit Circle 18
Lesson 4: Trigonometric Graphs, Part One 26
Lesson 5: Trigonometric Graphs, Part Two 33
Lesson 6: Inverse Trigonometric Functions 40
Lesson 7: Trigonometric Identities 48
Lesson 8: Trigonometric Equations 56
Lesson 9: Sum and Difference Formulas 62
Lesson 10: Double-Angle Formulas and Beyond 69
Lesson 11: Product-to-Sum and Sum-to-Product 75
Lesson 12: Law of Sines 79
Lesson 13: Law of Cosines 86
Lesson 14: Areas of Triangles 92
Lesson 15: Polar Coordinates 97
Lesson 16: Graphing Polar Equations 104
Lesson 17: Complex Number in Polar Form 113
Lesson 18: Introduction to Vectors 120
Lesson 19: Dot Products 127
Lesson 20: Vectors in Three Dimension 134