List of Trigonometric Functions

Trigonometric Functions
Function (abbreviation) Definition Formula
sine (sin) opposite / hypotenuse sin A = a/c
cosine (cos) adjacent / hypotenuse cos A = b/c
tangent (tan) opposite / adjacent tan A = a/b
cotangent (cot or ctn) adjacent / opposite cot A = b/a
secant (sec) hypotenuse / adjacent sec A = c/b
cosecant (csc) hypotenuse / opposite csc A = c/a
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