There are 1 questions in this calculation: for each question, the 15 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 15th\ derivative\ of\ function\ \frac{xsin(x)cos(x)x}{x} - xxlg(x)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = xsin(x)cos(x) - x^{2}lg(x)\\\\ &\color{blue}{The\ 15th\ derivative\ of\ function:} \\=&-245760sin(x)cos(x) - 16384xcos^{2}(x) + 16384xsin^{2}(x) - \frac{958003200}{x^{13}ln{10}}\\ \end{split}\end{equation} \]

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