Integration by Partial Fractions problems

1) Integral dx/(x+2)(x^2+1)
2) Integral (3x-1)dx/(x-1)(x-2)(x-3)
3) Integral x dx/(x^2+1)(x-1)
3)Integral (x^3+x+1)dx/(x^2-1)
#maths #calculus #integration
#mathsproblems #integrationproblems
‪@Mathatics-MAS‬