There are 1 questions in this calculation: for each question, the 7 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 7th\ derivative\ of\ function\ px + \frac{(qa)}{({x}^{2})} + \frac{r{a}^{2}}{({x}^{5})}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = px + \frac{qa}{x^{2}} + \frac{a^{2}r}{x^{5}}\\\\ &\color{blue}{The\ 7th\ derivative\ of\ function:} \\=&\frac{-40320qa}{x^{9}} - \frac{1663200a^{2}r}{x^{12}}\\ \end{split}\end{equation} \]

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