Cosine and sine of an angle θ are defined to be the x and y-coordinates ... is the y-coordinate of the point P. This applet shows how the graphs of sin(θ) and cos(θ) follow directly from the ...

A sine wave is an S-shaped waveform defined ... ½π (which are the points where sine waves peak). You can graph specific sine or cosine curves using a graphing calculator, mathematical or ...

Graphs of Sine and Cosine 1.2 An applet illustrating how the graphs of sine and cosine are related to the unit circle. Transformations of Functions 1.3 An applet illustrating how transformations ...

With static graphs and equations, it's possible to get a handle on the rules of what various functions do and mean. However, it's still hard to get an intuitive sense of the relationship between ...