• #### Trigonometric Ratios: Cosine - Problem 2

##### Math›Precalculus›Basic Trigonometry
How to find the length of a hypotenuse in a right triangle, given a side length.
• #### Trigonometric Ratios: Sine - Problem 1

##### Math›Geometry›Basic Trigonometry
How to find the sine of two angles in a right triangle given two side lengths.
• #### Trigonometric Ratios: Sine - Problem 1

##### Math›Precalculus›Basic Trigonometry
How to find the sine of two angles in a right triangle given two side lengths.
• #### Trigonometric Ratios: Sine - Problem 1

##### Math›Trigonometry›Basic Trigonometry
How to find the sine of two angles in a right triangle given two side lengths.
• #### Trigonometric Equations that Require Factoring - Problem 2

How to solve a tangent equation by factoring: tan^2(x) - tan(x) - 2 = 0.
• #### Trigonometric Equations that Require Factoring - Problem 3

How to solve a sine and cosine equation by factoring: ?2 sin2 x ? 5 cos x + 4 = 0.
• #### Trigonometric Equations that Require Factoring - Problem 3

How to solve a sine and cosine equation by factoring: ?2 sin2 x ? 5 cos x + 4 = 0.
• #### Trigonometric Equations that Require Factoring - Problem 2

How to solve a tangent equation by factoring: tan^2(x) - tan(x) - 2 = 0.
• #### Trigonometric Equations that Require Factoring - Problem 1

How to solve a sine equation by factoring: 2 sin2 x ? 3 sin x + 1 = 0.
• #### Trigonometric Equations that Require Factoring - Problem 1

How to solve a sine equation by factoring: 2 sin2 x ? 3 sin x + 1 = 0.

• #### Inverse Trigonometric Functions - Problem 2

##### Math›Geometry›Basic Trigonometry
How to use inverse trig functions to find an angle in a trapezoid.
• #### Inverse Trigonometric Functions - Problem 1

##### Math›Trigonometry›Basic Trigonometry
How to use inverse trig functions to find angles in right triangles.
• #### Inverse Trigonometric Functions - Problem 1

##### Math›Precalculus›Basic Trigonometry
How to use inverse trig functions to find angles in right triangles.
• #### The Tangent Function - Problem 1

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

##### Math›Precalculus›Trigonometric Functions
How to find values of tan(q) when q=0, ?/6, ?/4, and ?/3.
• #### The Tangent Function - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to find when sine, cosine, and tangent are positive.
• #### The Tangent Function - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to find when sine, cosine, and tangent are positive.
• #### Evaluating the Tangent Function - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to evaluate the tangent of -?/6.
• #### Evaluating the Tangent Function - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to evaluate the tangent of -?/6.