trigonometry

By Hal Canary, 2006-06-07 18:31:58 (link)
#mathematics

Why do I find trigonometry so beautiful?
[unit circle with trig functions]  All of the trigonometric functions can be constructed geometrically in terms of a unit circle centered at O
(source)

By definition, versin(A)=1-cos(A), and exsec(A)=sec(A)-1.


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