There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{300}{(1 + {2}^{(4 - x)})}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{300}{({2}^{(-x + 4)} + 1)}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{300}{({2}^{(-x + 4)} + 1)}\right)}{dx}\\=&300(\frac{-(({2}^{(-x + 4)}((-1 + 0)ln(2) + \frac{(-x + 4)(0)}{(2)})) + 0)}{({2}^{(-x + 4)} + 1)^{2}})\\=&\frac{300 * {2}^{(-x + 4)}ln(2)}{({2}^{(-x + 4)} + 1)^{2}}\\ \end{split}\end{equation} \]

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