Introduction to the three trigonometric ratios and two laws.
Author- K .Venkataraman Trigonometry is the study and measurement of angles and sides of a triangle. Trigon literally means 3 sides and metry means measurement. There are three main ratios of trigonometry and the other three are just functions of the first three, so let us see what are the ratios. 1) Sine 2) Cosine 3) Tangent These are the three ratios and the others are just inverses of the three First let us see about sine. Sine is the ratio between the opposite side and the hypotenuse of a right-angle triangle, here is a diagram for reference. Table of sin values: - Solved examp...