Posted on October 7, 2019October 19, 2019 by Ashish KumarLecture 4 Part 3 Integrals Class 12 Maths Video - 3 In this lecture I am discussing following questions and the last case of partial fractions3. \int\frac{x^2+1}{x^2-5x+6}dx 4. \int \frac{x^2+x+1}{(x+2)(x^2+1)}dx5. \int\frac{2x-3}{(x^2-1)(2x+3)}dx6. \int\frac{1}{x^4-1}dx Previous Video Next Video