There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{xln(x - 1)}{x} + 1\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = ln(x - 1) + 1\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( ln(x - 1) + 1\right)}{dx}\\=&\frac{(1 + 0)}{(x - 1)} + 0\\=&\frac{1}{(x - 1)}\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！