There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 0.21{e}^{(\frac{x}{127.81})} + 0.78\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 0.21{e}^{(0.00782411391909866x)} + 0.78\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 0.21{e}^{(0.00782411391909866x)} + 0.78\right)}{dx}\\=&0.21({e}^{(0.00782411391909866x)}((0.00782411391909866)ln(e) + \frac{(0.00782411391909866x)(0)}{(e)})) + 0\\=&0.00164306392301072{e}^{(0.00782411391909866x)}\\ \end{split}\end{equation} \]

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