There are 1 questions in this calculation: for each question, the 4 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 4th\ derivative\ of\ function\ xxxxxxxxx\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x^{9}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( x^{9}\right)}{dx}\\=&9x^{8}\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 9x^{8}\right)}{dx}\\=&9*8x^{7}\\=&72x^{7}\\\\ &\color{blue}{The\ third\ derivative\ of\ function:} \\&\frac{d\left( 72x^{7}\right)}{dx}\\=&72*7x^{6}\\=&504x^{6}\\\\ &\color{blue}{The\ 4th\ derivative\ of\ function:} \\&\frac{d\left( 504x^{6}\right)}{dx}\\=&504*6x^{5}\\=&3024x^{5}\\ \end{split}\end{equation} \]

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