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Trigonometry – 1.
*Introduction to Trigonometry. Trigonometry is a branch of Mathematics that deals with the relation between sides and angles of triangles. The word ‘trigonometry’ is derived from the Greek words ‘trigonon’ and ‘metron’. It means measuring the sides of triangles. Greek Mathematicians used trigonometric ratios to determine unknown distances. The Egyptians used a primitive form of…

