There are 1 questions in this calculation: for each question, the 15 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 15th\ derivative\ of\ function\ {x}^{15} + {x}^{14} + {x}^{13} + {x}^{12} + {x}^{11} + {x}^{10} + {x}^{9} + {x}^{8} + {x}^{7} + {x}^{6} + {x}^{5} + {x}^{4} + {x}^{3} + {x}^{2} + x + 15\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x^{15} + x^{14} + x^{13} + x^{12} + x^{11} + x^{10} + x^{9} + x^{8} + x^{7} + x^{6} + x^{5} + x^{4} + x^{3} + x^{2} + x + 15\\\\ &\color{blue}{The\ 15th\ derivative\ of\ function:} \\=&1307674368000\\ \end{split}\end{equation} \]

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