There are some standard substitutions, where we put value of x and solve it
Not clear how to approach
Not clear how to approach
Last updated at Dec. 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