There are 1 questions in this calculation: for each question, the 15 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 15th\ derivative\ of\ function\ 1720320cos(2x) - 491520xsin(2x) - 32768x*2cos(2x)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 1720320cos(2x) - 491520xsin(2x) - 65536xcos(2x)\\\\ &\color{blue}{The\ 15th\ derivative\ of\ function:} \\=&177167400960sin(2x) + 16106127360xcos(2x) + 16106127360cos(2x) - 2147483648xsin(2x)\\ \end{split}\end{equation} \]

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