Investigating Relationships Between Tan & Cot Functions

Jess Armstrong

Click and drag the point (x, y) around the circle in a counterclockwise direction. You will simultaneously see one full cycle of the cotangent function y = cot(x) traced in blue and one full cycle of the tangent function y = tan(x) traced in red. The degrees that are shown inside the circle correspond with the radian angle measures along the x-axis. For example, 90 degrees = pi/2 radians.
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