There are 1 questions in this calculation: for each question, the 4 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 4th\ derivative\ of\ function\ {x}^{666}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x^{666}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( x^{666}\right)}{dx}\\=&666x^{665}\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 666x^{665}\right)}{dx}\\=&666*665x^{664}\\=&442890x^{664}\\\\ &\color{blue}{The\ third\ derivative\ of\ function:} \\&\frac{d\left( 442890x^{664}\right)}{dx}\\=&442890*664x^{663}\\=&294078960x^{663}\\\\ &\color{blue}{The\ 4th\ derivative\ of\ function:} \\&\frac{d\left( 294078960x^{663}\right)}{dx}\\=&294078960*663x^{662}\\=&194974350480x^{662}\\ \end{split}\end{equation} \]

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