There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{(2 + sin(x) - \frac{1}{cos(x)})}{(\frac{1}{2})} + {(sin(x))}^{2}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = - \frac{2}{cos(x)} + 2sin(x) + sin^{2}(x) + 4\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( - \frac{2}{cos(x)} + 2sin(x) + sin^{2}(x) + 4\right)}{dx}\\=& - \frac{2sin(x)}{cos^{2}(x)} + 2cos(x) + 2sin(x)cos(x) + 0\\=& - \frac{2sin(x)}{cos^{2}(x)} + 2cos(x) + 2sin(x)cos(x)\\ \end{split}\end{equation} \]

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