Examples
Example 2
Example 3 (i) Important
Example 3 (ii) You are here
Example 4 Important
Example 5 Important
Example 6 Important
Question 1 Deleted for CBSE Board 2024 Exams
Question 2 Deleted for CBSE Board 2024 Exams
Question 3 Deleted for CBSE Board 2024 Exams
Question 4 Important Deleted for CBSE Board 2024 Exams
Question 5 Important Deleted for CBSE Board 2024 Exams
Question 6 Important Deleted for CBSE Board 2024 Exams
Question 7 Important Deleted for CBSE Board 2024 Exams
Last updated at April 16, 2024 by Teachoo
Example 3 Show that (ii) sinβ1 (2xβ(1βπ₯2)) = 2 cosβ1x Solving L.H.S. sinβ1 ( 2x β(1βπ₯2) ) Putting x = cos ΞΈ = sinβ1 ("2 cos ΞΈ " β(πβππππ" ΞΈ" )) = sinβ1 ("2 cos ΞΈ " β(ππππ" ΞΈ" )) = sinβ1 (2 cos ΞΈ sin ΞΈ) = sinβ1 (sin 2ΞΈ) We need to make 2x β(πβππ) in terms of sin When we get β(1βπ₯2) , we put x = cos ΞΈ or sin ΞΈ