There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ arctan(ln(1 - x))\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = arctan(ln(-x + 1))\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( arctan(ln(-x + 1))\right)}{dx}\\=&(\frac{(\frac{(-1 + 0)}{(-x + 1)})}{(1 + (ln(-x + 1))^{2})})\\=&\frac{-1}{(-x + 1)(ln^{2}(-x + 1) + 1)}\\ \end{split}\end{equation} \]

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