There are 1 questions in this calculation: for each question, the 8 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 8th\ derivative\ of\ function\ ln(1 + i{x}^{2})\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = ln(ix^{2} + 1)\\\\ &\color{blue}{The\ 8th\ derivative\ of\ function:} \\=&\frac{-1290240i^{8}x^{8}}{(ix^{2} + 1)^{8}} + \frac{2580480i^{7}x^{6}}{(ix^{2} + 1)^{7}} - \frac{1612800i^{6}x^{4}}{(ix^{2} + 1)^{6}} + \frac{322560i^{5}x^{2}}{(ix^{2} + 1)^{5}} - \frac{10080i^{4}}{(ix^{2} + 1)^{4}}\\ \end{split}\end{equation} \]

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