There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ cos(f)(sqrt(x))\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = cos(f)sqrt(x)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( cos(f)sqrt(x)\right)}{dx}\\=&-sin(f)*0sqrt(x) + \frac{cos(f)*\frac{1}{2}}{(x)^{\frac{1}{2}}}\\=&\frac{cos(f)}{2x^{\frac{1}{2}}}\\ \end{split}\end{equation} \]

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