# Lecture 4 Part 3 Integrals Class 12 Maths

## Video - 3

In this lecture I am discussing following questions and the last case of partial fractions

3. $\int\frac{x^2+1}{x^2-5x+6}dx$

4. $\int \frac{x^2+x+1}{(x+2)(x^2+1)}dx$

5. $\int\frac{2x-3}{(x^2-1)(2x+3)}dx$

6. $\int\frac{1}{x^4-1}dx$