Herb Zinser's Science Reports

By: herbzinser | June 13, 2014

Concept Paper CP-163 by Herb Zinser


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Trigonometric Identities Unit Circle

www.haverford.edu/physics/.../Trig_Ident.pdf
Haverford College
Trigonometric Identities. 1. Trigonometric Identities. Basic Identities: sin θ = y r. ( 1 ) cos θ = x r. ( 2 ) tan θ = y x = sin θ cosθ. ( 3 ) cot θ = x y. = cos θ sinθ. = 1 tan θ.

Tangent ( tan ) function  in Man + hat + tan - Trigonometry - Math Open Reference

www. math openref.com/ trigtangent .html
The tangent function , along with sine and cosine, is one of the three most common trigonometric functions . In any right triangle, the tangent of an angle is the ...


http://www.cliffsnotes.com/math/trigonometry/graphs-of-trigonometric-functions/~/media/5F81E14C56FB4A398F3BD520445A3EAD.ashx

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