EXERCISE 8.3 | NCERT-CLASS 10TH-MATHS-CHAPTER 8-INTRODUCTION TO TRIGONOMETRY ||

Full exercise 8.3 has been solved in an easy and simple manner. It includes solution of questions from Question 1 to Question 4. Questions: 00:00 Q1. Express the trigonometric ratios sin A, sec A and tan A in terms of cot A. 03:20 Q2. Write all the other trigonometric ratios of  A in terms of sec A. 09:01 Q3. Choose the correct option. Justify your choice. 18:12 Q4. Prove the following identities, where the angles involved are acute angles for which the expressions are defined.