Question icon
Grade 12Integral Calculus

  • ∫(3x⁴+4x³/x⁴+x+1)²dx
  • Find the solution in this type of question to related to intigration chapter

Question image for ∫(3x⁴+4x³/x⁴+x+1)²dx Find the solution in this ty
Profile image of Rani
6 Years agoGrade 12
Answers icon

1 Answer

Profile image of Aditya Gupta
5 Years ago
Multiply the numerator and denominator by x^-8 to convert the integrand into:
(3x^-4+4x^-5)/(1+x^-3+x^-4)^2.
Now simply substitute y= 1+x^-3+x^-4 so that dy= -(3x^-4+4x^-5)dx.
After that you can easily integrate -y^-2 to get the final answer!