There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ sin(2)x - (\frac{{x}^{2}}{6})\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = xsin(2) - \frac{1}{6}x^{2}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( xsin(2) - \frac{1}{6}x^{2}\right)}{dx}\\=&sin(2) + xcos(2)*0 - \frac{1}{6}*2x\\=&sin(2) - \frac{x}{3}\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！