In mathematics, a function f is cofunction of a function g if f(A) = g(B) whenever A and B are complementary angles. This definition typically applies to trigonometric functions. For example, sine and cosine are cofunctions of each other (hence the `co` in `cosine`): The same is true of secant and cosecant and of tangent and cotangent: Sometim...
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http://en.wikipedia.org/wiki/Cofunction
cofunction The trigonometric function of the complement of an angle. The tangent, for example, is the cofunction of the cotangent.
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http://www.wordinfo.info/words/index/info/view_unit/864/
the function of the complement of a given angle or arc: cos&thgr; is the cofunction of sin&thgr;.
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https://www.infoplease.com/dictionary/cofunction
No exact match found.
