Okay, never mind, I got it. So the point here was that we needed to make the numerator something that would cancel out the derivative of the denominator?
Okay, never mind, I got it. So the point here was that we needed to make the numerator something that would cancel out the derivative of the denominator?
Yes. The moral of the story, always look for an "inner" function with its derivative as a multiple, then you can use a substitution.