Cuemath
Cuemath: Trigonometry
A comprehensive guide for learning all about the basics of trigonometry, the various identities-formulas of trigonometry, solved examples, and practice questions.
Discovery Education
Discovery Education: Web Math: Try to Simplify a Trigonometric Expression
This WebMath site is a java program that will simplify a trig expression. This is a good site to use to check answers to problem sets. Read the site instructions carefully.
Johan Claeys
Math Abundance: Inverse Trigonometric Functions = Cyclometric Functions
Explains the inverse trigonometric functions using examples.
Northeast Parallel Architectures Center, Syracuse University
Npac Reu Program: Derivatives of Trigonometric Functions
This Northeast Parallel Architectures Center at Syracuse University site is a table of contents for information and examples on derivatives of trigonometric functions.
Northeast Parallel Architectures Center, Syracuse University
Npac Reu Program: Trig Function Graphs
Northeast Parallel Architectures Center provides a quick overview of the graphs of the six trigonometric functions, with angles measured in radians.
Lawrence Hall of Science
The Math Page: Trigonometry: Trigonometric Functions of Any Angle
Here is a site that clearly and thoroughly explains the trigonometric functions of any angle and the polar coordinate system. There are example problems solved, problems for the student to attempt, and answers to the student problems....
Curated OER
Trig Function Point Definitions
A java applet that relates the unit circle to the graphs of the six trigonometric functions, complete with the values of the functions.
University of California
University of California, Davis:trig Derivatives
Use this site from the University of California, Davis to practice taking derivatives of trigonometric functions. The site begins with a list of the derivatives of each of the trig functions and then offers related problems with solutions.
Other
Dan Sloughter: Trigonometric Series Approximations
Understand how trigonometric functions can model periodic behavior. See the application of periodic behavior, amplitude, frequency in sound waves. Make sure to turn up your sound to load an audio file to play the given tone of the...
Interactive Mathematics
Interactive Mathematics: Trigonometric Functions of Any Angle
Given a reference angle, you can find the trigonometric functions of any angle. The process is demonstrated in this lesson and examples are provided for practicing the concept.
Math Medics
S.o.s. Math: Trigonometric Functions
Introductory lesson to trigonometric functions. Includes definitions, properties, graphs, and a wide variety of examples and practice exercises.
Clark University
Clark University: Dave's Short Trig Course
This Clark University trigonometry tutorial site features questions and answers about what students can learn from trigonometry.
Other
North Carolina Su: Triangles, Circles, and Waves (Oh My!)
This site has a basic overview of trigonometry focusing on the trig functions, trig ratios, and the unit circle.
CK-12 Foundation
Ck 12: Trigonometry: Sine, Cosine, and Tangent Functions
[Free Registration/Login may be required to access all resource tools.] This lesson covers the three trigonometric ratios: sine, cosine, and tangent.
Other
Technical Tutoring: The Very Fast Trig Review
This resource is a quick review of the functions and identities in trigonometry.
Math2
Math2.org: Hyperbolic Trigonometric Identities
This site lists all the hyperbolic and inverse hyperbolic trigonometric definitions, and expresses the relations of the hyperbolic trigonometric fuctions to trigonometric functions.
Other
Technical Tutoring: Trig Identities
This resource is a quick review of the functions and identities in trigonometry.
Paul Dawkins
Paul's Online Notes: Trig Cheat Sheet [Pdf]
A trigonometry "cheat sheet" to use as a reference when completing trigonometry homework. Lists basic facts, properties, identities, formulas, and inverse trigonometric functions.
Wolfram Research
Wolfram Math World: Trigonometric Functions
This site provides a listing of the trigonometric functions and their inverses. Their notation is also addressed along with links to each of the fundamental trigonometric functions.
Iowa State University
Inverse Trigonometric Functions
This trigonometry tutorial features an explanation of how the inverse of all six of the trigonometric functions are obtained--and includes a Java applet for further reinforcement of the concept.
Other
Inverse Trigonometric Functions [Pdf]
This is a ten page selection from a math textbook that highlights the concept of inverse trigonometric functions. The book provides real world examples, worked out practice problems and numerous problems for students to attempt on their...
Windstream
Ojk's Precalculus Study Page: Easier Trigonometric Equations
An introduction to solving trigonometric equations, including finding general and particular solutions. The connection between the tangent function and the slope of a line is also covered. Includes several examples and graphs.
Math2
Math2.org: Trigonometry Functions
A complete look at trig functions. From an "overview," page giving general definitions and important vocab words, to a listing of the 12 trig functions, to an explanation of the three modes used in trigonometry, to the procedures of how...
Math2
Math2.org: Trigonometry Tables
Three trig tables are provided for student and teacher reference. The first table lists the sine, cosine, tangent, secant, cosecant, and cotangent values of all whole-number angles from 0 to 90. The radian equivalent (to four decimals)...
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