Chapter 12 : Troigonometry

Trigonometry Ratio of Complementary Angles

Let us consider a triangle ABC right angled at B. Let

Example 6. Without using trigonometirc tables, evaluate:

Solution:-

= -6

 

Maths by Mr. M. P. Keshari
Subjects Maths (Part-1) by Mr. M. P. Keshari
Chapter 9 Circle
Chapter 10 Tangents to a circle
Chapter 11 Geometrical Construction
Chapter 12 Troigonometry
Chapter 13 Height and Distance
Chapter 14 Mensuration
Chapter 15 Statistics
Chapter 16 Probability
Chapter 17 Co-ordinate Geometry