There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ (cos(-4x + 8))(sin(-x - 5))\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = sin(-x - 5)cos(-4x + 8)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( sin(-x - 5)cos(-4x + 8)\right)}{dx}\\=&cos(-x - 5)(-1 + 0)cos(-4x + 8) + sin(-x - 5)*-sin(-4x + 8)(-4 + 0)\\=&-cos(-x - 5)cos(-4x + 8) + 4sin(-4x + 8)sin(-x - 5)\\ \end{split}\end{equation} \]

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