• The Inverse Cosine Function - Problem 1

How to define the inverse cosine function.
• Evaluating Sine and Cosine at Special Acute Angles - Problem 1

Math›Trigonometry›Trigonometric Functions
How do we measure sine and cosine of ?/6?
• Evaluating Sine and Cosine at Special Acute Angles - Problem 1

Math›Precalculus›Trigonometric Functions
How do we measure sine and cosine of ?/6?
• Evaluating Sine and Cosine at Special Acute Angles - Problem 2

Math›Precalculus›Trigonometric Functions
How to measure sine and cosine of pi/3
• Evaluating Sine and Cosine at Special Acute Angles - Problem 3

Math›Trigonometry›Trigonometric Functions
How do we graph sine and cosine when q is between 0 and ?/2?
• Evaluating Sine and Cosine at Other Special Angles - Problem 3

Math›Trigonometry›Trigonometric Functions
How to measure the sine and cosine of -5?/3.
• Transforming the Graphs of Sine and Cosine - Problem 2

Math›Trigonometry›Trigonometric Functions
How to graph a stretched cosine function.
• Evaluating Sine and Cosine at Other Special Angles - Problem 1

Math›Trigonometry›Trigonometric Functions
How to measure the sine and cosine of -135?.
• The Inverse Cosine Function - Concept

How to restrict the domain of cosine so it will have an inverse function.
• Evaluating Sine and Cosine at Other Special Angles - Problem 2

Math›Trigonometry›Trigonometric Functions
How to measure the sine and cosine of 11*pi/6.
• Evaluating Sine and Cosine at Special Acute Angles - Concept

Math›Trigonometry›Trigonometric Functions
How do we measure sine and cosine of pi/4?
• Trigonometric Ratios: Cosine - Problem 1

Math›Precalculus›Basic Trigonometry
How to find the cosine of an angle in a right triangle.
• Trigonometric Ratios: Cosine - Concept

Math›Geometry›Basic Trigonometry
How to define the cosine ratio and identify the cosine of an angle in a right triangle.
• The Definitions of Sine and Cosine - Problem 4

Math›Trigonometry›Trigonometric Functions
How to determine the magnitude of sine or cosine using a unit circle diagram.
• The Law of Cosines - Problem 2

Math›Precalculus›Basic Trigonometry
How to use the law of cosines to find a missing angle given three sides in a triangle.
• The Law of Cosines - Problem 2

Math›Trigonometry›Basic Trigonometry
How to use the law of cosines to find a missing angle given three sides in a triangle.
• The Definitions of Sine and Cosine - Problem 2

Math›Precalculus›Trigonometric Functions
How to find the sine of an angle when its cosine is given.
• Evaluating Sine and Cosine at Special Acute Angles - Concept

Math›Precalculus›Trigonometric Functions
How do we measure sine and cosine of pi/4?
• The Definitions of Sine and Cosine - Problem 4

Math›Precalculus›Trigonometric Functions
How to determine the magnitude of sine or cosine using a unit circle diagram.
• The Definitions of Sine and Cosine - Problem 2

Math›Trigonometry›Trigonometric Functions
How to find the sine of an angle when its cosine is given.