Topic 8 Trigonometry – Mathematics Form Two
Accurate measurements such as distances, angles, and navigation would be difficult without having the knowledge of trigonometry.
In this chapter, you will learn trigonometric ratios, trigonometric ratios of special angles, and perform calculations that involve angles of elevation and depression.
The competencies developed will enable you to solve various problems related to building constructions, designing, navigation, and many other applications.
Trigonometric ratios
Sine, cosine, and tangent are the basic trigonometric ratios abbreviated as ‘sin’, ‘cos’, and ‘tan’. These are referred to as ratios because they are defined by ratios of the sides of a right-angled triangle.
Other trigonometric ratios derived from these basic ratios are secant, cosecant, and cotangent. These are reciprocals of the three basic trigonometric ratios.
Topic 8 Trigonometry – Mathematics Form Two