There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ (209.4*60)((sin(x) + 0.15sin(2x)))\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 12564sin(x) + 1884.6sin(2x)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 12564sin(x) + 1884.6sin(2x)\right)}{dx}\\=&12564cos(x) + 1884.6cos(2x)*2\\ \end{split}\end{equation} \]

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