Unit Circle Labeled At Quadrantal Angles
Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with the x- and y-axes indicated. All quadrantal angles are given in radian measure in terms of pi.
Keywordscircles, cot, tangent, degrees, Degree, Sine, Tan, analytic geometry, trigonometry, ratio, quadrants, radian, radians, trig ratios, trig, sin, cos, cosine, sec, csc, special angles, secant, coordinate plane, unit circle, radius of 1, trigonometric functions, quadrantal angles, cosecant, cotangent, 45°
Florida Center for Instructional Technology Clipart ETC (Tampa: University of South Florida, 2007)