There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ sin(3 - 4x)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = sin(-4x + 3)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( sin(-4x + 3)\right)}{dx}\\=&cos(-4x + 3)(-4 + 0)\\=&-4cos(-4x + 3)\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！