There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 13x + \frac{13sin(4x)}{44}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 13x + \frac{13}{44}sin(4x)\right)}{dx}\\=&13 + \frac{13}{44}cos(4x)*4\\=&\frac{13cos(4x)}{11} + 13\\ \end{split}\end{equation} \]

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