Question

What is Trigonometry?​

Answer 1

Answer:

"Trig" redirects here. For other uses, see Trig (disambiguation).

Trigonometry

Sinus und Kosinus am Einheitskreis 1.svg

OutlineHistoryUsage

Functions (inverse)Generalized trigonometry

Reference

IdentitiesExact constantsTablesUnit circle

Laws and theorems

SinesCosinesTangentsCotangents

Pythagorean theorem

Calculus

Trigonometric substitutionIntegrals (inverse functions)Derivatives

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Trigonometry (from Greek trigōnon, "triangle" and metron, "measure"[1]) is a branch of mathematics that studies relationships between side lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.[2] The Greeks focused on the calculation of chords, while mathematicians in India created the earliest-known tables of values for trigonometric ratios (also called trigonometric functions) such as sine.[3]

Throughout history, trigonometry has been applied in areas such as geodesy, surveying, celestial mechanics, and navigation.[4]

Trigonometry is known for its many identities. These trigonometric identities[5][6] are commonly used for rewriting trigonometrical expressions with the aim to simplify an expression, to find a more useful form of an expression, or to solve an equation.[7]

Step-by-step explanation:

Answer 2

Answer:

Trigonometry is one of the important branches in the history of mathematics and this concept is given by a Greek mathematician Hipparchus.

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