![Example 27 (iii) - Chapter 7 Class 12 Integrals - Part 2](https://cdn.teachoo.com/c328f947-d652-4b0a-8603-7a1bb4bde837/slide23.jpg)
![Example 27 (iii) - Chapter 7 Class 12 Integrals - Part 3](https://cdn.teachoo.com/0b9b9a27-950b-4755-8d56-a58ce83fcebd/slide24.jpg)
![Example 27 (iii) - Chapter 7 Class 12 Integrals - Part 4](https://cdn.teachoo.com/7aeadb62-5fbc-4821-868d-c8dee82fc347/slide25.jpg)
Definite Integration - By Partial Fraction
Definite Integration - By Partial Fraction
Last updated at Dec. 16, 2024 by Teachoo
Example 27 Evaluate the following integrals: (iii) 1 2 + 1 + 2 Step 1 :- = + 1 + 2 We can write the integrate as : + 1 + 2 = A + 1 + B + 2 + 1 + 2 = A + 2 + B + 1 + 1 + 2 By canceling denominators =A +2 +B +1 Therefore + 1 + 2 = 1 + 1 + 2 + 2 Integrating w.r.t. +1 +2 = 1 +1 + 2 +2 = +1 +2 +2 = +1 + +2 2 = +2 2 +1 = + 2 2 + 1 Hence = + 2 2 + 1 Step 2 :- 1 2 + 1 + 2 = 2 1 1 2 + 1 + 2 = 2 + 2 2 2 + 1 1 + 2 2 1 + 1 = 4 2 3 3 2 2 = 4 2 3 3 2 2 = 4 2 3 2 3 2 = 16 3 2 9 = 32 27 =