
Introduction to Trigonometric Functions
The "trigonometry" term derives from the Greek "τριγονομετρία" ("trigonometria"), meaning "triangle measuring", from triangle+ to measure. The first trigonometric table was developed by Hipparchus of Nicaea. The subject was originally developed to solve the geometric problems which are involving in triangles.
Let us know about Inverse Trigonometric Functions.
In mathematics, the inverse trigonometric functions are called inverse functions of the trigonometric functions, though they do not meet the official definition for inverse functions as their ranges are subsets of the domains of the original functions. Since none of the six trigonometric functions are one-to-one (by failing the horizontal line test), they must be restricted in order to have inverse functions.
Get more details on Trigonometric angles.
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