what's is mean by trigonometry
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the branch of mathematics is dealing with the relations of sides and angles of triangle and with relevant function of any Angle
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A N S W E R :-
Trigonometry (from Greek trigōnon, "triangle" and metron, "measure") 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.
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