you integrated using a nonexisting rule .
You shoud be doing
I have a pretty simple integration by parts question I'm supposed to solve, but for some reason I can't seem to get the right answer...Can someone point out where I've gone wrong?
Our tutor instructed us that if there is a natural log in the question, that that should be set as the variable to be deriviated, as we haven't been taught a technique for finding the integral of ln x.
Anyway, I worked the question out as follows...
Apparently, I'm supposed to be getting this though...
Where exactly am I going wrong?
Sorry, but I don't quite understand why the integral sign is there then? Are you essentially saying that the integral sign should be ignored, and I should instead multiply resulting in ??
I'm missing something really simple here, but it just hasn't clicked...