There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ e^{j*2pi(4sin(x) + 5cos(x))}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = e^{8jpisin(x) + 10jpicos(x)}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( e^{8jpisin(x) + 10jpicos(x)}\right)}{dx}\\=&e^{8jpisin(x) + 10jpicos(x)}(8jpicos(x) + 10jpi*-sin(x))\\=&8jpie^{8jpisin(x) + 10jpicos(x)}cos(x) - 10jpie^{8jpisin(x) + 10jpicos(x)}sin(x)\\ \end{split}\end{equation} \]

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