There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 50159 - {50159}^{(-0.9851x)}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = - {50159}^{(-0.9851x)} + 50159\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( - {50159}^{(-0.9851x)} + 50159\right)}{dx}\\=& - ({50159}^{(-0.9851x)}((-0.9851)ln(50159) + \frac{(-0.9851x)(0)}{(50159)})) + 0\\=& - -0.9851 * {50159}^{(-0.9851x)}ln(50159)\\ \end{split}\end{equation} \]

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