Trigonometry Tutorials and Help

Trigonometric Ratios

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The Unit Circle

Sine and Cosine

Inverse Trigonometric Functions

Inverse Function Notation

Inverse Functions. vs. Relations

Domain and Range of Inverse Functions

Calculating the Value of Inverse Functions

Evaluating an Inverse Function

Evaluating an Inverse Relation

Applying an Inverse Function

Determining an Inverse Function Value from a Trig Table

Applications of Inverse Functions

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Tangent and Cotangent

Graph of Tangent

Graph of Cotangent

Tangent and Cotangent

Asymptotes of Tangent and Cotangent

Finding the Asymptotes of Tangent and Cotangent

Plotting Tangent and Cotangent Points

Graphing Tangent

Graphing Cotangent

Transforming Tangent and Cotangent

Stretching Tangent and Cotangent Vertically

Altering the Period of Tangent and Cotangent

Graphing Negative Tangent and Cotangent

Horizontally Shifting the Graph of Tangent and Cotangent

Vertically Shifting the Graph of Tangent and Cotangent

Graphing Multiple Transformations of Tangent and Cotangent

The Graph of Inverse Tangent and Cotangent

Graphing Inverse Tangent and Cotangent

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Secant and Cosecant

Trigonometric Identities

Angle Identities

Opposite Angle Identities

Negative Angle Identities

Evaluating a Negative Angle

Angle Sum Identities

Applying Angle Sum Identities

Angle Difference Identities

Applying Angle Difference Identities

Half Angle Identities

Applying Half Angle Identites

Applying Double Angle Identities

Angle Decomposition

Decomposing Angles Using Addition

Decomposing Angles Using Subtraction

Decomposing Angles Using Multiplication

Decomposing Angles Using Division

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Trigonometric Equations

Algebraic Techniques

Solving for an Angle with a Coefficient

Solving an Equation by Multiplying or Dividing Through

Solving an Equation by Multiplying by One

Finding a Common Factor for a Trigonometric Expression

Solving an Equation by Factoring a Trigomometric Quadratic

Solving an Equation by Factoring a Trigonometric Quadratic by Grouping

Solving an Equation Using the Quadratic Formula

Trigonemetric Techniques

Trigonometric Identity Proofs

Applying an Inverse Function to Solve a Trigonometric Equation

Solving an Equation by Squaring Both Sides

Solving an Equation by Applying a Half Angle Identity

Solving an Equation by Applying a Double Angle Identity

Applying a Pythagorean Identity to Solve an Equation

Applying a Ratio Identity to Solve an Equation

Solving an Equation by Converting to Sine and Cosine

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Area and Triangle Laws

Names of Unique Triangles

Determining if a Triangle is Unique

The Law of Sines

Solving for an Angle with the Law of Sines

Solving for a Side with the Law of Sines

Ambiguous Triangle Identities

The Law of Cosines

Solving an SAS Triangle with the Law of Cosines

Solving an SSS Triangle with the Law of Cosines

The Law of Tangents

Applying the Law of Tangents

Heron's Formula

Finding the Area of an SSS Triangle

Finding the Area of an SAS Triangle

Solving the Area of an ASA Triangle

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Trigonometric Applications

Using Trigonometry in Word Problems

Determining Which Function to Use

Angle of Elevation

Determining the Angle of Elevation

Solving for a Height

Solving for a Distance

Problems with Height and Angle of Elevation

Problems with Distance and Angle of Elevation

Angle of Depression

Determining the Angle of Depression

Adjacent Right Triangle Problems

Inset Triangle Problems

Solving Problems with Inset Right Triangles

Solving a Pythagorean Identity for Cosine

Solving a Pythagorean Identity for Secant

Solving a Pythagorean Identity for Cotangent

Solving a Pythagorean Identity for Cosecant

Explore all of our learning and teaching solutions

Tutorials

Trigonometry Tutorials

Trigonometric Ratios

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The Unit Circle

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Sine and Cosine

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Inverse Trigonometric Functions

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Tangent and Cotangent

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Secant and Cosecant

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Trigonometric Identities

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Angle Identities

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Trigonometric Equations

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Area and Triangle Laws

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Trigonometric Applications

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