Online Course in Trigonometry

 Here are the samples of lessons from our course in Trigonometry. These samples will play only the instruction for any given section. The preview will not have access to other premium features such as interactive question-answers, quizzes and your personal progress tracker.
Trigonometry
Lesson 1: Angles and Their Measures
 Getting Started - Angles and Their Measures Degree and Radian Measurement of angles Conversion Between Degrees and Radians
Lesson 2: Trigonometric Functions
 Getting Started - Trigonometric Functions Definitions of Trigonometric Functions The unit circle, Sine, and Cosine Graphs of Sine and Cosine Functions
Lesson 3: Trigonometric Identities
 Getting Started - Trigonometric Identities Pythagorean Trigonometric Identity Verifying Trigonometric Identities
Lesson 4: Trigonometric Functions and their graphs
 Graphing Tangent, Cotangent, Cosecant and Secant Functions Graphing Sinusoids Tangent of an Angle
Lesson 5: Evaluating Trigonometric Functions
 Trigonometric Functions - Angles Trigonometric functions of any angle Finding reference angles
Lesson 6: Inverse Trigonometric Function
 Meaning: Inverse Trigonometric Functions Evaluating Inverse Trigonometric Functions Solving Trigonometric Equations
Lesson 7: Sine and Cosine Formulas
 Sum and Difference Formulas Using Sum and Difference Formulas Double and Half Angle Formulas Using Double and Half Angle Formulas
Lesson 8: Right Triangle Trigonometry
 The six trigonometric functions Solving Right Triangles
Lesson 9: Laws of Sines and Cosines
 Definition - Law of Sines & Cosines Using the law of Sines and Cosine Formulas The Ambiguous Case Area of a Triangle
Lesson 10: Applications of Trigonometry
 Angles of Elevation and Depression Real-World Applications Indirect Measuring with triangles
Lesson 11: Polar Coordinate System
 Name Polar Coordinates Polar -Rectangular Coordinates Conversion Convert Equation from Polar to Rectangular Form
Lesson 12: Complex Numbers
 The Complex Number System Polar Form of Complex Numbers Multiplication of Complex Numbers
Lesson 13: De Moivre's Theorem
 Getting Started - De Moivre's Theorem Using De Moivre's Theorem Roots of Complex Numbers

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