There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{(3925000x)}{(20x - 0.0015)}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{3925000x}{(20x - 0.0015)}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{3925000x}{(20x - 0.0015)}\right)}{dx}\\=&3925000(\frac{-(20 + 0)}{(20x - 0.0015)^{2}})x + \frac{3925000}{(20x - 0.0015)}\\=&\frac{-78500000x}{(20x - 0.0015)(20x - 0.0015)} + \frac{3925000}{(20x - 0.0015)}\\ \end{split}\end{equation} \]

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