• #### The Tangent Function - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to find values of tan(q) when q=0, ?/6, ?/4, and ?/3.
• #### The Inverse Sine Function - Problem 1

How to define the inverse sine function.
• #### Using Trigonometric Identities - Concept

##### Math›Trigonometry›Trigonometric Functions
How to simplify a trigonometric expression by converting to sines and cosines and using algebra.
• #### The Law of Sines - Problem 2

##### Math›Precalculus›Basic Trigonometry
How to find an angle in a triangle using the law of sines.
• #### Evaluating the Tangent Function - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to evaluate the tangent of 4*pi/3.
• #### The Tangent Function - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to find when sine, cosine, and tangent are positive.
• #### Equation of a Circle - Problem 2

##### Math›Trigonometry›Pythagorean Theorem
How to identify the center and radius of a circle given an equation.
• #### Trigonometric Identities - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to use the Pythagorean identity to find cosine and tangent when sine is known.
• #### Asymptotes of Secant, Cosecant, and Cotangent - Concept

##### Math›Trigonometry›Trigonometric Functions
How to find the vertical asymptotes of secant, cosecant, and cotangent.
• #### Using Trigonometric Identities - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra.
• #### Using Trigonometric Identities - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to simplify a trigonometric expression using a Pythagorean identity and algebra.
• #### Distance Formula - Problem 1

##### Math›Trigonometry›Pythagorean Theorem
How to find the distance between two points on the coordinate plane using the distance formula.
• #### Graph of the Tangent Function - Concept

##### Math›Trigonometry›Trigonometric Functions
How to graph y = tan(theta) for 0 <= theta < pi/2.
• #### Transforming Secant and Cosecant - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to graph a transformation of the cosecant function.
• #### The Law of Cosines - Problem 2

##### Math›Geometry›Basic Trigonometry
How to use the law of cosines to find a missing angle given three sides in a triangle.
• #### The Reciprocal Trigonometric Functions - Concept

##### Math›Trigonometry›Trigonometric Functions
How to define the reciprocal trigonometric functions, the reciprocal identities, and the Pythagorean identities.
• #### Transforming the Tangent Graph - Concept

##### Math›Trigonometry›Trigonometric Functions
How to graph y = tan(q) for one or more periods.
• #### Trigonometric Identities - Concept

##### Math›Trigonometry›Trigonometric Functions
How to use the unit circle to derive the tangent identity and the Pythagorean identity.
• #### Radian Measure of Angles - Concept

##### Math›Trigonometry›Trigonometric Functions
How to measure angles using degrees or radians.
• #### The Law of Sines - Problem 1

##### Math›Geometry›Basic Trigonometry
How to find the length of a triangle given two angles and a side, using the law of sines.