Trigonometry

Angles and Their Meausures

A radian is the measure of an arc whose length is the length of the radius of a circle.  How many radians are in a circle?  
What is a radian?  This link will provide the activity for use with the presentation above.  Use the link to the slide deck below if the link above is not working.

Graphs of the Parent Trig Functions

The Sine Function 
f(x) = sin(x)

The Cosine Function   f(x) = cos(x)

More Trig Functions for Higher Level Mathematics

The Cosecant Function f(x) = csc(x)

The Tangent Function 
f(x) = tan(x) 

The Secant Function 
f(x) =sec(x)

The Cotangent Function f(x) = cot(x)

Trigonometric Functions and The Unit Circle

Graphs of Trigonometric Functions

The Unit Circle

Sine and The Unit Circle

Grab the point at the origin with your cursor and drag it to create the sine graph as the point goes around the unit circle. Here is a link to the Desmos graph for both sine and cosine and the unit circle.

    Questions

    If you have any questions or comments about the slide shows, please submit them here.  Do not submit problems, but submit questions you might have on any of the topics. 

Cosine and the Unit Circle