Texas Instruments
Texas Instruments: Computing by Degrees!
In this activity, students use the calculator to solve trigonometry problems using sine, cosine, and tangent. They also find inverses of trigonometric functions.
Wolfram Research
Wolfram Math World: Inverse Sine
This is a math site on the inverse of sine. Includes charts, color graphs, formulas including the Maclaurin series, as well as links to math terms and subject areas used within the site.
CK-12 Foundation
Ck 12: Trigonometric Functions of Angles Greater Than 360 Degrees
[Free Registration/Login may be required to access all resource tools.] Finding the value for trigonometric functions for angles exceeding 360 degrees.
Texas Instruments
Texas Instruments: Inverse Functions
Review inverse functions with your students using this TI-83 activity. Students will find inverses of given functions, determine whether the inverse is a function, graph both, and check for symmetry through the line y=x. The lesson...
Purple Math
Purplemath: Inverse Functions: Definition of "Inverse" / Drawing the Inverse
Explains the concept of inverse functions, covers some typical exercises, and demonstrates how to find the inverse of a given function.
Illustrative Mathematics
Illustrative Mathematics: F if Parabolas and Inverse Functions
This task assumes an understanding of the relationship between functions and equations. Students try to solve equations in order to find the inverse of a function given in equation form: when no such solution is possible, then the...
Khan Academy
Khan Academy: Trigonometry: Evaluate Inverse Trig Functions
Given a sine, cosine, or tangent value, find the principle angle that has this value. In other words, find the arcsine, arccosine, or arctangent of that value. Students receive immediate feedback and have the opportunity to try questions...
Khan Academy
Khan Academy: Verify Inverse Functions
Given the formulas of two functions, compose the functions and determine whether they are inverses of each other.
CK-12 Foundation
Ck 12: Interactive Geometry: 17.4 Inverse Trigonometric Ratios
Define the trigonometric ratios in terms of ratios of the sides of a right triangle.
CK-12 Foundation
Ck 12: Algebra Ii: 4.6 Transformations of Trigonometric Functions
Explore how changes to the equations of sine and cosine functions affect the graphs of the functions through transformations (stretches and shifts).
University of Guelph
University of Guelph: Trigonometry Tutorial
A guide to calculating trigonometric functions.
Oswego City School District
Regents Exam Prep Center: Inverse Trig Functions
The mathematics session investigates inverse trigonometric functions. The tutorial consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource examines inverse trigonometric functions on...
eFunda
Efunda: Trigonometric Functions
Site reviews trigonometric functions and inverse trigonometric functions. Formulas and graphs for both groups of functions are also shared.
Analyze Math
Analyze Math: Table for the 6 Trigonometric Functions for Special Angles
Learners explore the special angles for the six trigonometric functions. The special angles can be used to solve trigonometry problems. The table gives the values of sine, cosine, tangent, cotangent, secant, and cosecant for special angles.
Other
Karl's Calculus Tutor: Trigonometric Functions
Great application of trig and introduction to the trig functions. Also found here are the Law of Sines and Law of Cosines as well as other trig topics to review.
Oswego City School District
Regents Exam Prep Center: Six Trigonometric Functions
The mathematics session investigates the six trigonometric functions and reciprocal functions. The tutorial consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes the Greek...
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Topic Summaries: Trigonometric Functions
The topic summary outlines trigonometric functions. Some topics reviewed are derivatives of trigonometric functions, sine function, trigonometric identities, and indefinite integrals of trigonometric functions. The resource consists of...
University of St. Andrews (UK)
University of St. Andrews: Trigonometric Functions
This site from the University of Saint Andrews provides an historical look at the origins of trig functions. This site ties together mathematics and history from Hipparchus to Ptolemy to Lambert.
Texas Instruments
Texas Instruments: Geometric Representation of Trig Functions
Using similar triangles, a relationship is established between the six trigonometric functions of an angle and simple line segments. These relationships are then confirmed using line segment measurement capabilities of the graphing...
Texas Instruments
Texas Instruments: The Light Side of Trigonometry
In this activity, students use the TI InterActive! software to develop a model that determines the time of sunrise and sunset and the number of daylight hours in Melbourne on any day of the year. They also determine how the position on...
Math Medics
S.o.s. Math: On Inverse Functions With Restricted Domains
Offers a step-by-step explanation of a one-to-one function problem on inverse functions with restricted domains, clearly using the horizontal line test. Includes sample problems.
Paul Dawkins
Paul's Online Notes: Algebra: Inverse Functions
Detailed math tutorial features notes and examples that take a look at the process of finding inverse functions. It also defines one-to-one functions.
University of Guelph
University of Guelph: Physics Tutorials: Graphing Exponential Functions
This is a tutorial site explaining different types of graphs of exponential functions.
University of Saskatchewan (Canada)
University of Saskatchewan: Exponential and Logarithmic Functions
The University of Saskatchewan's Department of Mathematics and Statistics provides high school students with online tutorials and exercises on what they deem some of the most important topics in exponential and logarithmic functions....