3.5.6.3 Algorithm description to obtain the above solutions
Starting with
Find the solution of equation
Where now is a symbol. Lets say we found solutions (depending on what are). Then for each solution change it to be
Then write
Then replace each with letter in each by new letter say (the integration variable). Now the solution becomes
This is basically what was done in the above examples. There is no need to find an explicit solution for the integral. But this can be
done if needed afterwords.