There are some standard substitutions, where we put value of x and solve it
Not clear how to approach
Ex 2.2, 5 Important
Question 6 Important Deleted for CBSE Board 2025 Exams
Ex 2.2, 4 Important
Example 4 Important
Misc 9 Important
Example 5 Important
Question 3 Deleted for CBSE Board 2025 Exams
Ex 2.2, 6
Question 2 Deleted for CBSE Board 2025 Exams
Ex 2.2, 7 Important
Ex 2.2, 3 Important
Ex 2.2, 9 Important
Misc 10 Important
Misc 8 Important
Not clear how to approach
Last updated at April 16, 2024 by Teachoo
There are some standard substitutions, where we put value of x and solve it
Sometimes while integrating, We get questions like ∫1▒√(𝑎^2−𝑥^2 ) 𝑑𝑥 Now, how do we solve it? There are some standard substitutions, where we put value of x and solve it √(𝑎^2−𝑥^2 ) 𝑥=𝑎 𝑠𝑖𝑛𝜃 1−〖𝑠𝑖𝑛〗^2𝜃=〖𝑐𝑜𝑠〗^2𝜃 √(𝑎^2+𝑥^2 ) 𝑥=𝑎 𝑡𝑎𝑛𝜃 1+〖𝑡𝑎𝑛〗^2𝜃=〖𝑠𝑒𝑐〗^2𝜃 √(𝑥^2−𝑎^2 ) 𝑥=𝑎 𝑠𝑒𝑐𝜃 〖𝑠𝑒𝑐〗^2𝜃−1=〖𝑡𝑎𝑛〗^2𝜃