There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ sparx + spar*3.31*1.1(400 - x)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = sparx - 3.641sparx + 1456.4spar\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( sparx - 3.641sparx + 1456.4spar\right)}{dx}\\=&spar - 3.641spar + 0\\=&spar - 3.641spar\\ \end{split}\end{equation} \]

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