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

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