There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ \frac{{x}^{3}}{6} - \frac{{x}^{2}}{2}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{1}{6}x^{3} - \frac{1}{2}x^{2}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{1}{6}x^{3} - \frac{1}{2}x^{2}\right)}{dx}\\=&\frac{1}{6}*3x^{2} - \frac{1}{2}*2x\\=&\frac{x^{2}}{2} - x\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( \frac{x^{2}}{2} - x\right)}{dx}\\=&\frac{2x}{2} - 1\\ \end{split}\end{equation} \]

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