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

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