TRIGONOMETRY

TRIGONOMETRY Trigonometry is one of the most important branches of mathematics that deals with the relationship between the ratios of the sides of a right-angled triangle with its angles. The ratios used to study this relationship are trigonometric ratios: sine, cosine, tangent, cotangent, secant, and cosecant. The word trigonometry is a 16th-century Latin derivative and the concept was given by the Greek mathematician Hipparchus.   INTRODUCTION TO TRIGONOMETRY The word trigonometry is formed by clubbing words ‘Trigonon’ and ‘Metron’ which mean triangle and measure respectively. It is the study of the relation between the sides and angles of the right-angled triangle. It thus helps in finding the measure of unknown dimensions of the right-angled triangle using formulas and identities based on this relationship. TRIGONOMETRY BASICS Trigonometry basics deal with the measurement of angles and problems related to angles. These are three basic functions in trigonometry: sine, cosine and...