That last is a candidate for "partial fractions": find A, B, C, and D so that .
Mutiplying both sides by , so we must have A= 0, B= 4, A+ C= C= 0, and B+ D= 4+ D= 0 so D= -4.
This integral is the same as
I'm stuck.. can't remember how to integrate this (I'm sure I used to know)
How do I evaluate
I tried to do that z substitution thingy where
therefore
became
but I also still can't manage to evaluate it...
pls help guide me and also if you can help verify that my z substitution is correct please.
Now that you have pointed that out I agree that what I did is definitely overkill.... I knew somehow that there was an easy way to solve it but I couldn't think of it... thnx jest
And Halls yes thank you I don't know why I didn't recognize that the form was ripe for using partial fraction decomp...
Actually today I had been solving several hard problems for hours and you know sometimes you look at something really simple and for some reason your brain stops working.....
anyway thanks to all.