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

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