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Transformations of the Trig Functions with GeogebraThis Geogebra file shows dynamically how the graphs of the sine, cosine and tangent functions change as the parameters in their equations are changed. Thanks to Greg Bland for sharing this very visual activity. Geogebra is a powerful FREE dynamic geometry program. You can download it from
Sine and Cosine GraphsA highly effective interactive animation illustrating the sine and cosine graphs formed by rotating a point around the unit circle.
Transformations of the Sine CurveThis interactive animation shows the effect of adding a constant to the function. This interactive animation shows the effect of multiply the function by a constant a where a >= 0. This interactive animation shows how altering b in the function
The Unit Circle and the Tangent FunctionThis animation from Lou Talman shows how a point moving around the unit circle generates the tangent function.
The Unit Circle and the Sine CurveThis animation from Lou Talman shows how the sine curve can be constructed from the definition of the sine function as the ycoordinate of a point on the unit circle.
The Unit Circle and the Graph of the Tangent FunctionThis animation from Lou Talman shows how a point moving around the unit circle generates the tangent function.
The Unit Circle and the Graph of the Sine FunctionThis Quicktime animation from Lou Talman shows how the sine curve can be constructed from the definition of the sine function as the ycoordinate of a point on the unit circle.
Sine and Cosine FunctionsA lovely Geogebra applet that graphically shows how the sine and cosine functions are generated from the unit circle. From The Lawrenceville School Mathematics Department Web Resources.
