There are 1 questions in this calculation: for each question, the 4 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 4th\ derivative\ of\ function\ x - \frac{sin(2){x}^{2}}{6.28}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = - 0.159235668789809x^{2}sin(2) + x\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( - 0.159235668789809x^{2}sin(2) + x\right)}{dx}\\=& - 0.159235668789809*2xsin(2) - 0.159235668789809x^{2}cos(2)*0 + 1\\=& - 0.318471337579618xsin(2) + 1\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( - 0.318471337579618xsin(2) + 1\right)}{dx}\\=& - 0.318471337579618sin(2) - 0.318471337579618xcos(2)*0 + 0\\=& - 0.318471337579618sin(2)\\\\ &\color{blue}{The\ third\ derivative\ of\ function:} \\&\frac{d\left( - 0.318471337579618sin(2)\right)}{dx}\\=& - 0.318471337579618cos(2)*0\\\\ &\color{blue}{The\ 4th\ derivative\ of\ function:} \\&\frac{d\left( - 0\right)}{dx}\\=& - 0\\ \end{split}\end{equation} \]

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