There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{({x}^{2} - 1)}{(({x}^{2} + 1)ln(x))}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{x^{2}}{(x^{2}ln(x) + ln(x))} - \frac{1}{(x^{2}ln(x) + ln(x))}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{x^{2}}{(x^{2}ln(x) + ln(x))} - \frac{1}{(x^{2}ln(x) + ln(x))}\right)}{dx}\\=&(\frac{-(2xln(x) + \frac{x^{2}}{(x)} + \frac{1}{(x)})}{(x^{2}ln(x) + ln(x))^{2}})x^{2} + \frac{2x}{(x^{2}ln(x) + ln(x))} - (\frac{-(2xln(x) + \frac{x^{2}}{(x)} + \frac{1}{(x)})}{(x^{2}ln(x) + ln(x))^{2}})\\=&\frac{-2x^{3}ln(x)}{(x^{2}ln(x) + ln(x))^{2}} + \frac{2xln(x)}{(x^{2}ln(x) + ln(x))^{2}} + \frac{2x}{(x^{2}ln(x) + ln(x))} - \frac{x^{3}}{(x^{2}ln(x) + ln(x))^{2}} + \frac{1}{(x^{2}ln(x) + ln(x))^{2}x}\\ \end{split}\end{equation} \]

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