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

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