I used symbolab to work through the solution which turns out to be: The first step in the solution is to factorise the denominator. This is easy because is a sum of two cubes and so can be written as . Using partial fractions, the integral can be converted into the following form: The RHS integral is straightforward but the LHS one poses more difficulties. The way forward with the former is to write the quadratic in the denominator as a sum of two squares: This newly changed denominator can then be divided into the two parts of the numerator to yield: I'm not going to go into the details here but, with the appropriate substitutions, the LHS of this integral can be integrated to a logarithm and the RHS to an arctan using the formulae: The indefinite integral for turns out to be: The definite integral for the limits of 0 and 1 is what was quoted earlier at the beginning of this post. In conclusion, I must say that Blogger is still inconsistently handling the display mode for LaTeX: sometimes it renders the LaTeX using the Javascript and other times it returns an image of the rendered code. Annoying.
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