There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ {e}^{2}xcos(3)x\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x^{2}e^{2}cos(3)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( x^{2}e^{2}cos(3)\right)}{dx}\\=&2xe^{2}cos(3) + x^{2}*2e*0cos(3) + x^{2}e^{2}*-sin(3)*0\\=&2xe^{2}cos(3)\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 2xe^{2}cos(3)\right)}{dx}\\=&2e^{2}cos(3) + 2x*2e*0cos(3) + 2xe^{2}*-sin(3)*0\\=&2e^{2}cos(3)\\ \end{split}\end{equation} \]

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