I have this equation:
The Attempt at a Solution
I am understanding that the dN part just goes away and comes one on the top of the fraction. Then on the bottom, I am still left with 4-2N. I am simply saying that it is equal to ln|4-2N| .. however, I am told that it should be -1/2 ln(|4-2N|) . The -1/2 in front, is that coming from performing a chain rule? And if so, how do you get a chain rule out of this?