I'm confused. What point did I make? lol
I'm not going out to do all the math but here's the bottom line -
In some cases, either partial fractions as well as trig sub can be used. I believe this is one of those cases in which . Then you solve the eqution u=a(one trig expression) isolating x.
*Ahem* I think Jhevon said that , which is a correct identity. His point in saying this was to get the linear and quadratic factors required for the denominators of the partial fraction decomposition.
Kaitosan's point (and just because you don't think you made one doesn't mean you didn't ) was that a trignometric substitution can be made in a wider range of forms than Jhevon initially listed. Note: For some of these forms a hyperbolic substitution probably provides an easier path.
I'm thinking of using this example in my next book: Diplomacy and Tact for Bovines. (There will be a French edition). (And there will be an Appendix on latex tags .... )
You may wish to view my reply in this thread for a further example: http://www.mathhelpforum.com/math-he...tml#post331889